Due to changes in temperature and pressure, the substance can exist either as a solid or a gas.
Given The triple point temperature is, (T) = 17 ∘C
The pressure of substance at triple point (P) = 3.2atm
The triple point is the temperature at which a certain substance can exist in all three of its major forms (solid, liquid and gas). Generally speaking, there are three stages of states that can be used to classify the states of matter. At sea level, we will experience conditions with a pressure of 1 atm and a temperature of 25∘C. At the sea level surface of the Earth, the triple point temperature is exceeded and the pressure decreases. The material can therefore exist in both the solid and gas phases. As a result, we can draw the conclusion that the substance can exist in both a solid and a gaseous state due to temperature and pressure variations.
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four charges are at the corners of a square, with b and c on oppositecorners. charges a and d, on the other two corners, have equal charge, while both b and c have a charge of 1.0 c. what is the charge on a so that the force on b is zero?
Charges a and d, on the other two corners, have equal charge, while both b and c have a charge of 1.0 c, so the charge so that the force on b is zero is -2.8.
Charge is the material's physical quality that results in a force being applied to it when it is exposed to an electromagnetic field. You can have a positive or negative electric charge. Opposite charges attract one another while like charges repel one another. Neutral refers to an object that carries no net charge.
A square is a geometric shape with four equal-length sides and four right-angled corners. When diagonally opposite charges are paired, the fields inside every duo cancel in examples 1 and 2, leaving no net field at the centre.
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a hypnotist's watch hanging from a chain swings back and forth every 0.43 s. what is the frequency (in hz) of its oscillation?
According to the problem the frequency of the oscillation (in hz) is 2.33 hz.
What is oscillation?Oscillation is a repetitive variation in the value of a physical quantity over time. It can involve a periodic change in the magnitude of a signal or the direction of a signal's movement. Examples include the swinging of a pendulum, the vibration of a tuning fork, the alternating current in an electrical circuit, and the periodic motion of a molecule. Oscillation is a key component of many natural phenomena, from ocean waves to the beating of a human heart. It is also a fundamental concept in physics, engineering, and mathematics. Oscillation is essential for the operation of numerous mechanical and electronic systems, from motors and generators to cell phones and radios.
The frequency of the oscillation (in hz) is 2.33 hz.
This is because frequency is equal to the inverse of the period (time) of the oscillation.
The period of the oscillation is 0.43 s, so the frequency is calculated by taking the inverse of 0.43 s,
which is 2.33 hz.
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after a glass rod is rubbed against a silk cloth, the glass rod has a charge of 5 and the silk cloth has a charge of -7. what coule the original charges of the glass rod and silk cloth have been?
while the fabric is negatively charged, becoming positively charged. The opposing charges that two objects get when they brush against one another are explained. according to convention law.
Does the friction created whenever a glass rod is brushed with a silk fabric cause the glass rod to become positively charged?Because electrons are transported from the glass to the silk when a silk cloth is stroked across a glass rod, opposing charges are observed on both. Charge is neither generated nor destroyed during this procedure. Simply said, it is passed through one body to the other. The conservation law of charge therefore agrees with this observation.
Does the mass of a glass rod change when silk is rubbed across it?We are aware of the mass that electrons have. Therefore, when we remove some electrons from of the body, it will become positively charged and lose mass. Consequently, when a silk is brushed on a glass rod.
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why did aristarchus choose the time of a half moon to make his measurements for calculating the earth -sun distance?
At a half moon, this means the Suns light is falling on exactly half of the moon. So the angle must be a right angle (same as between the moon and sun, earth and sun, and earth and moon).So ,he choose the time of a half moon for calculating the earth -sun distance
The moon and the sun appear to have the same size and have the same angle of taper. He was able to determine the distance to the sun by using the right triangle that the sun made with the moon. At a distance 100,000 times closer than the Oort cloud, the Earth orbits the sun. It is only 92,955,807 miles (149,597,870 kilometres) away on average. Astronomical unit, or AU, is the name for the distance between the earth and the sun. Additionally, we utilise it to calculate distances throughout the solar system.
He calculated the angle between the Sun and a quarter-phase moon. He discovered the angle to be 87° and deduced that the Sun was between 18 and 20 times farther distant from the moon using the mathematics available at the time.
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This indicates that the moon is exactly halfway illuminated by the Sun at a full moon. The angle must therefore be a right angle (same as between the moon and sun, earth and sun, and earth and moon).
He therefore chose a half moon to calculate the Earth-Sun distance. Both the moon and the sun seem to be the same size and have a similar tapering angle. The right triangle formed by the sun, moon, and earth allowed him to calculate the distance to the sun. The distance between the Earth and the sun is 100,000 times closer than that of the Oort cloud. On average, it is only 149,597,870 kilometers (92,955,807 miles) away.
The distance between the earth and the sun is known by the abbreviation astronomical unit (AU). We also employ it to determine distances within in the solar system.
He determined the Sun's angle with a quarter-phase moon. Using the mathematics known at the time, he calculated the angle to be 87° and concluded that the Sun was between 18 and 20 times farther away from the moon.
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relief supplies are being dropped to flood victims from an airplane flying horizontally at a speed v. if the airplane is at an altitude of h above the ground, what distance d in front of the landing site should the supplies be dropped?
The distance d in front of the landing site should the supplies be dropped is v√(2h/g) meter. If the horizontal velocity of the airplane is v m/s and height of the plane from the ground is h.
Horizontal velocity of the airplane = v
height of the airplane = h
Initial velocity of the food, u = 0 m/s
From the second equation of motion,
S = ut +0.5gt²
h = 0.5gt²
t = √(2h/g)
It is time taken by the food to reach the ground. in this time the horizontal distance travelled by the food is, d = v × t
d = v × √(2h/g)
d = v√(2h/g)
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PLEASE DO ASAP WILL GIVE BRAINLIEST!!!
An initially neutral and non-polarized conducting rod is moving to the right at a constant speed v through a large region that has a uniform magnetic field, as shown above. Which of the following statements correctly describes the motion of the particles within the rod and the resulting charge separation in the rod caused by this motion?
(A) Positively charged particles within the rod moved downward, causing the bottom of the rod to have a positive charge and the top to have a negative charge.
(B) Negatively charged particles moved upward, causing the bottom of the rod to have a positive charge and the top to have a negative charge.
(C) Positively charged particles moved upward, causing the top of the rod to have a positive charge and the bottom of the rod to have a negative charge.
(D) Negatively charged particles moved downward, causing the top of the rod to have a positive charge and the bottom of the rod to have a negative charge.
Answer:
C
Explanation:
(C) Positively charged particles moved upward, causing the top of the rod to have a positive charge and the bottom of the rod to have a negative charge.
When a neutral and non-polarized conducting rod moves through a magnetic field, it will experience a force known as the Lorentz force. This force acts on the moving charges within the rod, and causes them to move perpendicular to both the direction of motion and the magnetic field. In this case, since the rod is moving to the right, and the magnetic field is pointing into the screen, the Lorentz force will act upward on the positively charged particles within the rod. This motion will cause a separation of charges in the rod, with the top having a positive charge and the bottom having a negative charge.
An enormous amount of electricity is created at power-generating stations and sent across the country through wires that carry high voltages. Appliances, power lines, airport and military radars, substations, transformers, computers, and other equipment that carries or uses electricity all generate electromagnetic fields.
Many questions have been raised about how electromagnetic fields affect our bodies. Do they pose a public health risk? Perform an Internet search to find information about the effects of electromagnetic fields on public health. Then, discuss the pros and cons of using equipment that produces an electromagnetic field.
Here is one authoritative source to get you started: electromagnetic fields and public health
An internet search to find information about the effects of electromagnetic fields on public health is highly dangerous to humans and other living organisms.
What do you mean by Electromagnetic fields?Electromagnetic fields may be defined as a combination of invisible electric and magnetic fields of force. They are typically generated by natural phenomena like the Earth's magnetic field but also by human activities, mainly through the use of electricity.
Electromagnetic fields highly impact numerous members of the public and have attributed a diffuse collection of symptoms to low levels of exposure to electromagnetic fields at home. Reported symptoms include headaches, anxiety, depression, nausea, fatigue, and loss of appetite.
Moderate to high Exposure to magnetic fields is strong enough can lead to dizziness, seeing light flashes, and feeling tingling or pain through stimulation of nerves. Exposure to radiofrequency fields that are strong enough can lead to the heating of body tissue, and result in damage to tissues and organs.
Therefore, an internet search to find information about the effects of electromagnetic fields on public health is well described above.
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Explain why omebody would ue a panner with a longer handle if they needed to undo a tight bolt
A spanner with longer handle increases the torque which in turn requires less force to undo the bolt.
This is because the rotational effect of a force depends on the perpendicular distance of the line of action of the applied force from the axis of rotation. The greater the vertical distance, the less force is required to rotate the body. That's why a spanner has a long handle. Long handles relieve pressure due to increased surface area. A long handle wrench is recommended. The larger the area, the lower the pressure, and the larger the area, the lower the pressure. The longer the handle, the greater the torque, and it will be easier to open a stuck bolt with a certain amount of force.
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Question 1(Multiple Choice Worth 2 points)
(03.03 MC)
In which of the following situations would sonar be most practical?
Measuring the distance between objects in the ocean
Observing internal organs
Determining the frequency of sounds
Dampening the intensity of sounds
The most practical application of sonar is measuring the distance between objects in the ocean.
option A.
What is sonar?
Sonar is a technique that uses sound propagation to navigate, measure distances, communicate with or detect objects on or under the surface of the water, such as other vessels.
So basically, sonar is applied under water to measure the distance of objects such minerals, vessels , etc.
Thus, we can conclude that the most practical application of sonar is found under water, for measuring the distance between objects in the ocean.
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how long does it take for a serious burn to occur when the temperature of a liquid is 140 f degrees?
A significant burn can happen in as little as five seconds at a hot liquid's temperature climb to 140° F.
Is the water hot at 140 degrees Fahrenheit?
A major reason to keep hot water at 120 degrees, especially if you have young children, is because hot water exceeding 140 degrees can potentially cause scorching. Scalding can have serious consequences and is more likely to happen to children and elderly people.
What is temperature?
Temperature is a measurement of how hot or cold something is on a specific scale.
What temperature causes the skin to burn?
According to studies, a full-thickness skin burn can occur at a temperature of 52 degrees Celsius (125 degrees Fahrenheit) in 2 minutes and a temperature of 54 degrees Celsius (130 degrees Fahrenheit) in 30 seconds.
Burn Exposure chart
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It just takes five seconds or less for a major burn to develop when a hot liquid is raised to a temperature of 140° F.
How long does a serious 140 degree burn last? It just takes five seconds or less for a major burn to develop when a hot liquid is raised to a temperature of 140° F.In order to have a full thickness burn at this temperature, adult skin needs to be exposed for an average of five minutes.A significant burn can happen within five seconds or less when a hot liquid is heated to 140 degrees Fahrenheit (60 degrees Celsius). In contrast to 120°F, where a significant burn takes roughly 10 minutes to occur, 140°F hot water can cause a serious burn in a person in just 3 seconds.Children and older individuals are at higher risk because thinner skin burns more quickly.To learn more about temperature refer
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1. Two uncharged metal balls, X and Y, each stand on a glass rod and are touching.
2. A third ball carrying a negative charge, is brought near the first two.
3. While the positions of these balls are fixed, ball X is connected to ground.
4. Then the ground wire is disconnected.
5. While X and Y remain in touch, the ball carring the negative charge is removed.
6. Then ball X and Y are separated.
After these procedures, what are the signs of the charge qX on X and qY on Y?
The signs of the charge qX on X is positive and qY on Y is positive after ball carrying the negative charge is removed and the balls X and Y are separated.
At the time when the third ball carrying a negative charge is brought near the first two, it gets polarized such that X contains +ve charge and Y contains a +ve charge. After this the ball X is connected to the ground when the positions of these balls are fixed and the electron move up from the ground. After that the ground wire should be disconnected. The ball carrying the negative charge is removed and the ball X and Y are separated. Due to this the electron has cancelled the net +ve charge on Y. Hence the charge on both X and Y is positive.
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what are the approximate dimensions of the smallest object on earth that astronauts can resolve by eye when they are orbiting
Approximate size s 700 is 29.4 m
Find Approximate size?The diffraction limit, which may be calculated using the formula = 1.22 / D, establishes the limit of the human eye's solution.
The circular aperture's mediator, D, and the wavelength are where you lick them.
The eye responds to wavelengths between 400 nm and 700 nm in our situation, where the dilated pupil has a diameter of about 8 mm = 8 10-3 m.
the formula is amended by including these values
λ = 400 nm θ = 1.22 400 10⁻⁹ / 8 10⁻³ = 6 10⁻⁵ rad
λ = 700 nm θ = 1.22 700 10⁻⁹ / 8 10⁻³-3 = 1.07 10⁻⁴ rad
The definition of radians is now: radians = s / R.
where the radius is R and s is the supported arc. For each scenario, let's identify the sarcos.
λ = 400 nm s 400 = θ R
S 400 = 6 10⁻⁵ 275
λ = 700 nm s_ 700 = 1.07 10⁻⁴ 275 10³
s 700 = 29.4 m.
The complete question is,
What is the smallest item on Earth that astronauts can see by eye when circling 275 kilometers above the planet and what is its approximate size?
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21) a stretched string is observed to have four equal segments in a standing wave driven at a frequency of 480 hz. what driving frequency will set up a standing wave with five equal segments? a) 600 hz
The driving frequency that will set up a standing wave with five equal segments is 600 Hz.
It is given that frequency observed for a stretched string with four equal segments in a standing wave is 480Hz.
That is, f₄ = 480 Hz
Fundamental frequency, f₀, can be calculated as,
f₀ = [tex]\frac{480}{4} = 120 Hz[/tex]
Therefore, the driving frequency that will set up a standing wave with five equal segments, f₅, is
f₅ = f₀ × 5
f₅= 120 × 5
f₅ = 600 Hz.
Hence, the driving frequency, f₅, is 600 Hz.
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Which et of condition would promote the greatet temperature change from unrie to mid-afternoon?
The combination of cloudy skies, quiet winds, and humid air would encourage the greatest temperature shift from sunrise to mid-afternoon.
The location of a place in relation to the sea is the primary factor that affects temperature. Compared to land, the sea both gains and loses heat gradually. Rapid warming and cooling occur on land.
Latitude, height, distance from the sea, and ocean currents are the four unavoidable factors that affect temperature.
Compared to land, oceans warm up and cool down considerably more gradually. This indicates that, for the same latitude and elevation, coastal areas tend to be warmer in the winter and cooler in the summer.
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The greatest temperature change from sunrise to mid-afternoon would be caused by a mix of gloomy skies, calm winds, and humid air.
The main factor affecting temperature is where a place is in proximity to the sea. The sea progressively warms and cools compared to land. On land, there is a sudden warming and cooling.
The four unavoidable factors that affect temperature are latitude, height, distance from the sea, and ocean currents. Oceans warm up and cool down much more gradually than land does. This shows that coastal places typically experience warmer winters and cooler summers for the same latitude and elevation.
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the mass of fuel in a jet must be calculated before each flight to ensure that the jet is not too heavy to fly. a 747 is fueled with 173,231 l of jet fuel. if the density of the fuel is 0.768 g / cm3 , what is the mass of the fuel in kilograms (kg)?
The mass of the fuel is 133 kilograms. The result is obtained by using the formula for the density.
What is the density of a substance?The density is the mass of a substance per unit of volume. It can be expressed as
ρ = m/V
Where
ρ = densitym = massV = volumeA jet 747 is fueled with jet fuel.
V = 173.231 L ρ = 0.768 g/cm³Find the mass of the fuel!
We convert the units of volume and density.
V = 173.231 L
V = 173.231 dm³
V = 173.231 × 1/1000 m³
V = 0.173231 m³
ρ = 0.768 g/cm³
ρ = 0.768 × 1000 kg/m³
ρ = 768 kg/m³
Using the formula for a density, we will get the mass.
ρ = m/V
768 = m/0.173231
m = 0.173231 × 768
m ≈ 133 kg
Hence, the jet fuel has a mass of 133 kilograms.
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which scenario describes a closed system in which momentum will be fully conserved? physics is beautiful
A bullet fired from a gun is the scenario which describes conservation of momentum.
A closed system is one which is not affected by the any external force or activity. When a bullet is fired from a gun it generates a recoil velocity in the gun. This is due to the conservation of momentum. Initially the momentum of the system (gun + bullet) is zero. When a bullet is fired because of having less mass as compared to the gun, it escape out with more velocity. To conserve the momentum of the system the gun also generates velocity in the backward direction. Due to the heavy mass of the gun as compared to the bullet, this velocity is very less, which is called recoil velocity.
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HELPP PLEASE THANK YOUUU
The label B in the diagram represents wavelength (last option)
How do I know what label B represents?We'll determine what label B represents by defining the options given. This is shown below:
Crest: This is the maximum value of the upward displacement of a progressive wave.
Amplitude: This is the maximum displacement of a wave.
Trough: This is the minimum value of the downward displacement of a progressive wave.
Wavelength: This is the distance between two successive crest or trough of a wave
Now, we can see clearly that label B exist bewteen two crest.
Thus, from the definitions given above, we can conclude that lebel B represents wavelength (last option)
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An object moves from point x to point y in 20 s, where the velocity at x = 50 km/h and
the velocity at y = 5. 56 m/s, so the acceleration of this object is.
The acceleration of this object is [tex]-8.33 m/s^2[/tex] (negative acceleration means it is slowing down).
How to calculate the acceleration of an object?To calculate the acceleration of an object you can use the following formula:
a = (v_f - v_i) / t
where a is acceleration, v_f is final velocity, v_i is initial velocity, and t is time.
Velocity at x = 50 km/h and velocity at y = 5.56 m/s, and the time taken to move from point x to point y is 20 seconds, so plug these values into the formula to get the acceleration: can ask. :
a = (5.56 m/s - (50 km/h)*(1000 m/km)/(3600 s/h)) / 20 seconds
a = (5.56m/s - 13.89m/s) / 20s
a = -8.33m/s^2
So the acceleration of this object is -[tex]8.33 m/s^2[/tex] (negative acceleration means it is slowing down).
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A 68.5 kg rocket is to be launched upwards with an acceleration of 3.65 m/s^2. What is the size of the net force acting on the rocket?
Answer:
250.025 Newtons
Explanation:
Fnet=ma
The temperature of 7. 33 moles of a diatomic gas is raised from 44. 4 degrees celsius to 71. 9 celsius. What was the "change in the internal energy" of the gas?
(unit = j)
The change in the internal energy of the gas is found as 4189.6 J.
Explain the term internal energy?internal drive U is the sum of the kinetic energy brought about by the molecular motion and indeed the potential energy brought about by the vibrational motion as well as electric energy the atoms among molecules in a system or perhaps a body with clearly defined limits.
We need to understand the work done through expansion and the quantity of heat transfer in order to compute the change of internal energy of a gas. We really need volume change to compute the amount of work completed. Therefore, we begin by computing the change in volume.We will consider the gas to just be perfectly ideal.
Change in volume,
∆V= n* R*( T2 - T1)/ P
∆V = 7.33 * 0.082* 27.5 K/ 1
∆V = 16.53 L
Now,
Work done for expansion,
W = - P*∆V = - 1 atm* 16.53 L
W = - 16.53 L atm
W = -16.53 L atm * (8.314 J/0.082 L atm)
W = - 1676 J
(0.082 L atm = 8.314 J)
Heat transfer, Q = n* Cp*(T2 - T1)
Q = 7.33* 3.5*8.314* 27.5
Q = 5865.6 J
We know that, Cp = 3.5*R, if diatomic gas
As per first law of thermodynamics,
∆E = Q + W = 5865.6J - 1676 J
∆E = 4189.6 J
Thus, the change in the internal energy of the gas is found as 4189.6 J.
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The tendency for a material to oppose the flow of electrons is called_____.
When a material tends to obstruct the flow of electrons, electrical energy is converted into heat energy and light. All materials have a characteristic called electrical resistance. Ohms, or, are used to measure resistance.
The flow of electrons is in the opposite direction from the flow of current. Resistance is a conductor quality that prevents current from flowing. Electrons and ions collide as they pass across a conducting wire. The current is decreased as a result of these collisions, which convert some kinetic energy into thermal energy. The ohm is the SI unit of resistance. Regarding the movement of electrons, they naturally gravitate towards the +ve side due to their -ve charge, which is the opposite of the traditional direction of current flow (from +ve to -ve).
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A 0.008kg balloon floats up into the air. If it has 2.40J of gravitational potential energy
compared to the ground, how far above the ground did it float? (Assume the reference height at the
ground is 0.)
a. y = 300.m
b. y = 0.188m
c. y = 0.0942m
d. y = 30.6m
The reference height form the ground level is 30.6m.
What is the distance that is covered?Let us note that when we are talking about the gravitational potential energy, we would have to look at the energy that is possessed by the object because the object is placed at a given height on earth.
Now, we have to note that the gravitational potential energy of the object can be obtained by the use of the formula;
E = mgh
E = gravitational potential energy
m = mass of the object
g = acceleration due to gravity
h = height
Then;
2.4 = 0.008 * 9.8 * h
h = 2.4/0.008 * 9.8
h = 30.6m
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a 8.4 kg object is on mars, where the gravitational field strength is 3.7 n/kg. what is the object's weight in newtons?
31.08 N will be the weight of that object on mars which has a mass of 8.4 kg as the gravitational field strength is 3.7 n/kg on Mars.
As we know that weight is nothing just force a body exerts on the surface so in a similar way the weight will be mass* acceleration due to the planet(Mars in this case) (g) which is 3.7 n/kg given. So
W = mass* g
w = 8.4 * 3.7 => 31.08N
Each planet has different gravitational field strength that we call (g) in the case of earth it is calculated as 9.8 n/kg but generally, we take as 10 n/kg for simplifying the calculation, and Mars has 3.7 n/kg and moon has as just 1.4 n/kg.
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helpp! A certain chemical reaction produces 0.0450grams of product. How many significant figures does this measurement have?
a.3
b.4
c.5
d.2
The measurement have 4 significant figures. Hence, option (b) is correct.
What is significant figures?The number that is given as digits is established using significant figures. A meaningful representation of numbers is carried by these digits.
Frequently, significant digits are employed in place of figures. By counting all of the values beginning with the first non-zero digit on the left, we may determine the number of significant digits.
The certain chemical reaction produces 0.0450grams of product.
In 0.0450, there have 4 significant figures.
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Answer: The answer is 3 sig figs, option A
Explanation:
a pharmacy technician measures the mass of a pill. the mass of one pill is . what is the mass in kilograms of pills? write your answer as a decimal.
The mass of one pill measured was 461 mg and for the same pill, the mass in kilograms of 100 pills will result to 46l*100/100000 => 0.046l kg. As there are 1 ms = 10^-5 kg.
What is a pharmacy technician? A pharmacy technician is a person in pharma who decides the composition of the chemicals in medicine and the size of medicine from manufacturing.
The mass of one pill is given as 461 mg and the number of pills required is 100So the total mass will be, mass of 1 pill*100 = 461 mg × 100 = 46100mg
one kilogram = 1000 grams, so the mass in kilograms will be, The same mass in kg will be 46100mg / 1000 grams
which results in 0.046l kg.
This simply shows, the mass of 1 pill was 461 mg the mass in kilograms of 100 pills will be 0.046l kg for measurements of the mass in kg of a pill.
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during summer months, in hot regions of the united states, some homes run air conditioners continuously. how many homes can the same power plant support if average electricity usage increases to 1,200 kwh/month during summer months?
The same power plant could supply approximately 270,000 homes if the average electricity consumption rises to 1,200 kWh/month in the summer.
This is due to the fact that there is now a significant increase in the demand for electricity, which must be met by power plants.
500 mW x 24 hours/day x 30 days/month x 0.9 = 324,000 MWh/month.
The number of homes that the same power plant can serve, however, may vary based on how much electricity each household has.
324,000 mWh/month x 1,000 kWh/MWh = 324,000,000 kWh/month.
324,000,000 kWh/month/1,200 kWh/month/home = 270,000 homes.
The number of homes that can be served by the same power plant in hotter parts of the United States may rise significantly if air conditioning is kept up.
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a horizontal force of 110 n is applied to a stationary wooden box in one direction, and a 700 n horizontal force is applied in the opposite direction. what additional force (in n) is needed for the box to remain stationary?
The additional force needed is 590 N.
Given,
Force of 110 N is applied in one direction and a force of 700 N is applied in other direction. In order to keep the box stationary, additional force applied is difference between the two applied forces.
i.e. Additional force = 700N - 110N = 590N
Push or pull of an object is considered a force. Push and pull come from the objects interacting with one another. Terms like stretch and squeeze can also be used to denote force.Force is an external agent capable of changing a body’s state of rest or motion. It has a magnitude and a direction. The direction towards which the force is applied is known as the direction of the force, and the application of force is the point where force is applied.In the standard international system of unit (SI unit) it is expressed in Newton (N).The quantity of force is expressed by the product of mass (m) and acceleration (a). The equation or the formula for force can mathematically be expressed in the form of: F = ma.To k now more about force visit :
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when you define a system to determine the temperature rise created in a lake when a portion of its water is used to cool a nearby electrical power plant, should we account for all the forms of water entering and leaving the volume selected?
All forms of water entering and leaving the volume selected should be accounted for in order to accurately determine the temperature rise in the lake caused by the power plant.
When determining the temperature rise of a lake caused by a nearby power plant, it is important to consider all forms of water entering and leaving the selected volume.
This includes not only the water being withdrawn and returned by the power plant, but also any other sources of water entering or leaving the lake, such as precipitation, evaporation, and surface or ground water flow.
By accounting for all of these inputs and outputs, a more accurate understanding of the overall heat balance of the lake can be obtained and the impact of the power plant on the lake's temperature can be better understood.
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If the Earth's sideways velocity could be suddenly stopped to zero, how would Earth move?
Group of answer choices
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It would fall directly into the sun
It would continue to orbit as before
It would fly off into space
If the Earth's sideways velocity becomes zero the Earth would still continue to orbit as before.
Sideways velocity of the earth is the rotational speed of the earth in terms of linear velocity. That is 1100 miles an hour approximately. If the sideways velocity of the earth becomes zero, objects on the earth will start flying eastward. This is due to the momentum possesses by the object on the surface of the earth. Flying of the rocks and oceans would cause the earthquakes and tsunamis. But there will not be any effect on the orbital velocity of the earth as it is governed by the gravitational force between the earth and the sun. Which ultimately depends on the masses of the sun and the earth and the distance between them.
So the correct option will be that the earth would continue to orbit as before.
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How many years older will you be 2. 00 billion seconds from now? (Assume a 365-day year. )
After 2.00 billion seconds you will be around 63 years assuming a 365 day year.
To know the answer you need to know the number of seconds in a year.
First, you need to multiply, 60 × 60
to find the number of seconds in an hour, which is 3600 seconds.
Then, multiply = 3600 × 24
to find the number of seconds in a day, which is 86,400 seconds.
Next, multiply = 86400 × 365
to find the number of seconds in a year, which is 31,536,000 seconds.
Finally, divide 2,000,000,000 by 31,536,000 and you will get about 63 years.
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