Complete question:
A volume V= 2.48 L of an ideal nitrogen gas (N2) are at temperature T= 0.964°C and pressure p = 1.49 atm. Find the number of moles of the gas.
Answer:
The number of mole of the gas is 0.164 mol.
Explanation:
Given;
volume of the ideal gas, V = 2.48 L
temperature of the gas, T = 0.964 °C = 273K + 0.964 = 273.964 K
pressure of the gas, P = 1.49 atm
The number of moles of the gas is calculated by using ideal gas equation;
PV = nRT
where;
n is the number of moles of the gas
R is ideal gas constant = 0.082057 L.atm/mol.K
[tex]n = \frac{PV}{RT} \\\\n = \frac{1.49 \ atm \ \times \ 2.48 \ L}{0.082057 \ L.atm/mol.K \ \ \times \ 273.964 \ K} \\\\n = 0.164 \ mol[/tex]
Therefore, the number of mole of the gas is 0.164 mol.
PLEASE HELP ASAP, WILL MARK BRAINLIEST!!!!
Answer:
it's yellowish orange (3)
Explanation:
A grapefruit has a pH of somewhere between 2.9-3.3 and it is quite acidic. The juice of a grapefruit can cause erosion of tooth enamel and cause damage to one's teeth if ate excessively
Magnitud del momento de una fuerza respecto a un punto cuando la línea de acción de la fuerza pasa por dicho punto.
Answer:
τ = 0
Explanation:
The moment of a force is defined by
τ = F x r
where bold indicates vectors.
We can write this equation in module form
τ = F r sin θ
the amount without ea r is called the breaststroke and is the distance perpendicular to the pivot point.
The line of action of the force passes through the turning point whereby
r = 0,
Consequently the moment is also zero
τ = 0
how does a thermo flask retain heat
Answer:
A thermo flask has a cork which prevents heat loss by conduction.
It also has vacuum which prevents heat loss by convection.
The amount of sea ice and permafrost have steadily decreased near Shishmaref, Alaska, over the last century. The loss of ice has allowed ocean waves to erode the land and destroy property. What might be causing this melting?
Answer:
Climate change, where there is an increase in the average temperature, due to continuous human activities. These activities increase greenhouse gases in the atmosphere.
Explanation:
Alaska is the largest state in the United States, and it has a cold climate. The climate changed over time as human activities such as coal mining contributed to greenhouse gas emissions leading to global warming. Over the years. the variations in weather leading to climate change melt the permafrost (frozen ground below the soil surface) causing ocean waves to erode the land and destroy property.
convert 40 HP into watt
Answer: 29828 watts
Explanation: hope that helped bro
How is elastic potential energy stored and released in the elastic cord or spring in it is sun lounger
Answer:
the answer is bts
Explanation:
3erdccdcwdcefdvefvwefwedc3rv3rv3vrecwscx
An iron is supplied with a current of 3 A from the mains. The resistance of the iron is 1000
Calculate the power of the iron.
Answer:
1.6 An iron is supplied with a current of 3 A from the mains. The resistance of the iron is 100 Ω. Calculate the power of the iron. [2
please help me with these 2 questions :D
Answer:
Explanation:
1- incident ray
2- the substance through which the wave travels
Answer: the incident ray(the incident ray is the ray striking the mirror at the point of incidence while the refracted ray is the ray leaving the mirror)
The substance through which the ray or wave travels.
Identify the products in this chemical equation
2A1 + 3FeO - Al2O3 + 3Fe
Do noble gases lose or gain electrons to get a full valence shell?
While working on a design for a new roller coaster, the designers noticed that the roller coaster cars did not have enough energy to complete the loop. How should they adjust the track so that the cars can complete the loop?
A. Decrease the height of the hill before the loop because that would decrease the kinetic energy of the cars.
B. Increase the height of the hill before the loop because that would decrease the kinetic energy of the cars.
C. Increase the height of the hill before the loop because that would increase the kinetic energy of the cars.
D. Decrease the height of the hill before the loop because that will increase the kinetic energy of the cars.
Answer: B
Explanation:
Sarah is demolishing two clock towers, one on either side of the city. She sets up the explosives to go off at the same time when she sends the signal from the center of the city. She sends the signal and sees both clock towers blow up at the same time and sees both towers show 1pm exactly. Adam is flying past the earth traveling at a speed close to the speed of light as sees the building farthest away from him blow up first. Explain how Sarah can see them blow up at the same time, but Adam sees them blow up at different times.
Answer:
According to Lorentz transformation, the time observed of by objects moving in different reference frames are related to their velocity of motion and the speed of light
The time measured by Sarah who is located at the source of the signal and the center of the explosion is different from the time measured by Adam who is moving relative to Sarah and observes the signals moving at different speeds and therefore observes the buildings blow up not immediately but at different times
Explanation:
The time and space dilation equations are given as follows;
[tex]\Delta t = \dfrac{\Delta t'}{\sqrt{1 - \dfrac{v^2}{c^2} } }[/tex]
[tex]L = L' \times \sqrt{1 - \dfrac{v^2}{c^2} }[/tex]
Where;
Δt' = The time measured by Adam
Δt = The time measured by Sarah
L' = The distance measured by Adam
L= The distance measured by Sarah
v = The velocity at which Adam is moving
Let 'u' represent the speed of the signals
Given that Adam is traveling in between the two clock towers such that one signal is moving in the opposite direction towards him while the other signal moves in the his direction, by relativistic velocity addition, we have;
The velocity with which Adam observes the signal coming towards him, v' is given as follows;
v'' = (v + u)/(1 + v·u/c²)
∴ v'' > v
For the signal moving in the direction of Adam, we have;
v''' = (v - u)/(1 - v·u/c²)
v''' < v
Therefore, we have;
The time it takes the light to reach Adam from the furthest Tower which he passes as he is flies past Sarah in the middle, Δt'' is given as follows;
[tex]\Delta t'' = {\Delta t'} \times {\sqrt{1 - \dfrac{v''^2}{c^2} } }[/tex]
For the closer tower which Adam approaches, we have;
[tex]\Delta t''' = {\Delta t'} \times {\sqrt{1 - \dfrac{v'''^2}{c^2} } }[/tex]
Given that v'' > v''', therefore Δt'' < Δt''' and the time the light from the furthest building is seen first by Adam before the light from the closer building.
Question 19 of 30
A helium balloon's temperature is raised by 1°C. Will this cause its molecules to move faster or slower?
they will move at the same speed
faster
slower
heating of anything increases the kinetic energy of its molecules, so the molecules will move faster.
A helium balloon's temperature is raised by 1°C. This will cause molecules to move faster.
What is the temperature?The temperature has an impact on this average kinetic (motional) energy. Their average kinetic energy likewise rises when gas molecules warm up.
As a result, they travel more quickly and collide more frequently and violently inside the balloon. The temperature has an impact on the hot air balloon's internal pressure. The molecules move more quickly and forcefully against the interior wall of the balloon as they warm up.
A region of the balloon is subjected to more force due to the gas particles' greater velocity, which raises the pressure there.
Therefore, the temperature of a helium balloon is increased by 1°C. Molecules will move more quickly as a result.
To learn more about temperature, refer to the link:
https://brainly.com/question/1457043
#SPJ2
A convex lens has a focal length of 12 cm, and has an object 8 cm from it. What is the magnification of the image?
Question 1 options:
1.5
1
3
2
Answer:
1.5
Explanation:
A 116 watt LED light bulb has a current of 11 amperes running through it. What is the
voltage in the lightbulb?
Answer:
Voltage = 10.54545
Given -
Current (I) - 11
Amps - 11
Resistance - 0.95868
Power - 116
We can conclude:
The voltage will be 10.54545, because of Ohm's Law:
Ohm's law states that:
Voltage (V) = Current (I) * Resistance (R)
Power (P) = Voltage (V) * Current (I)
Which describes time dilation?
The faster an object moves, the more stretched time becomes.
The more slowly an object moves, the more stretched time becomes.
The faster an object moves, the more time it takes for light to travel a given distan
O The faster an object moves, the less time it takes for light to travel a given distanc
Answer:
A). The faster an object moves, the more stretched time becomes.
Explanation:
'Time dilation' is described as the 'slowing of the passage of time experienced by objects in motion relative to an observer that is measurable only at the relative speeds.' As per this particular relativity theory, the observer witnesses an elongated time with reference to the other setting. This reduction in speed of time(slowing down) becomes more clear and evident in the case of an object moving briskly near to the light's speed. Thus, option A is the correct answer.
What is the total resistance of the circuit shown below?
(Please help)
[tex]\huge{ \mathfrak{ \underline{Answer : }}} [/tex]
In the given figure, the resistors are joined in parallel connection.
Let's solve for total resistance [tex]R_t[/tex] :
[tex] \dfrac{1}{R_t} = \dfrac{1}{ R_1} + \dfrac{1}{R_2} [/tex][tex] \dfrac{1}{R_t} = \dfrac{1}{20} + \dfrac{1}{30} [/tex][tex]\dfrac{1}{R_t} = \dfrac{3 + 2}{60} [/tex][tex]\dfrac{1}{R_t} = \dfrac{5}{60} [/tex][tex]{R_t} = \dfrac{60}{5} [/tex][tex]{R_t} = 12 \: \: ohms[/tex]____________________________
[tex]\mathrm{ \#TeeNForeveR}[/tex]
1. Nombrar mediante ITEMS las características que tiene el musculo de pescado y como se diferencian del musculo animal terrestre.
Answer:
Similitudes y diferencias entre los músculos de los peces y los de los animales terrestres.
Explicación:
Los músculos de los peces se diferencian del músculo de los animales terrestres porque los peces tienen músculos rojos, rosados y blancos. También tienen tejido muscular de pescado que se compone de músculo estriado al igual que el músculo de los animales terrestres. La mayor parte del tejido muscular de los peces es de color blanco, pero muchos peces también tienen una cierta cantidad de tejido oscuro de color marrón o rojizo. El músculo oscuro se encuentra justo debajo de la piel a lo largo del costado del cuerpo.
what characteristic describes what happens during a physical change
What pressure is transmitted to the wheel cylinder if 200N is applied on the brake pedal of master cylinder with a radius of 12cm?
Answer:
pressure = force/area
force = 200N
area = πr², π =3.142, r = 12 cm = 0.12 m
pressure = 200/3.142×(0.12)²
p = 200/3.142×0.24
p = 200/0.754
p = 265.25 Nm-¹ or 265.25 Pa
Please tell me if this is Newton's first law, second, or third law of motion. There can be more than one of the same answer very desperate to pass science!
Answer: Hope This Helps!
Explanation:
1: Newton’s first law of motion can explain how a magician pulls a tablecloth from underneath the dishes. A negligible horizontal force is applied during the process. As per Newton’s first law of motion, the dishes and glasses remain in their state of motion (rest); as a result, they remain undisturbed.
2: Newton's First Law of Motion is defined as "An object at rest and an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force."In soccer, when the soccer ball is in the soccer field and it is not moving, that means that it is at rest and there is no force acting upon it. When there is a person that is ready to play soccer and wants to kick the ball and play, then the unbalanced force would be the power from the person's foot.
3: Newtons third law can explain, as the cannonball is pushed forwards by the expanding high-pressure gases created by the exploding gunpowder, it pushes back on these gases. The gases push back on the cannon itself, causing it to roll backwards. Alternative answer: the cannon pushes forward on the cannonball. the reaction force is the cannonball pushing backwards on the cannon.
Question 10 (1 point)
Identify the list below that contains items that diverge light rays.
Question 10 options:
Convex lens and concave mirror
Convex lens and concave lens
Convex mirror and concave lens
Convex mirror and concave mirror
Explanation:
convex mirror and concave lens
Electromagnetic waves are a form of what type of energy?
Let me know if its correct or incorrect.
Answer:
The correct answer is - radiant.
Explanation:
Electromagnetic waves are the transverse waves that get energy as radiation from the source and transfer to an absorber so, the radiant energy is the energy of electromagnetic waves.
Electromagnetic waves are can travel in space unlike mechanical waves and are made up of photons, tiny packets of energy. Electromagnetic waves or spectra include radio waves, infrared, light, microwaves, UV, X-rays, and gamma rays.
A wire connected to red and green terminals on a grey box, which contains a white box with a needle pointing up. The wire passes through a 3 sided trough and is there labeled with a downward pointing arrow and the words Direction of movement of wire. You are trying to induce a current and have put together the setup shown. What needs to be added in order for current to flow in the wire?
100 points, help asap
Answer:
A Magnet
Explanation:
Edge 2021
Answer:
The answer is the last option, A Magnet
Explanation:
Explain why gravity changes from place to place. For example why does gravity change in different planets please help
a). Gravity does change across the surface of the Earth and throughout its atmosphere, due to several effects. First, there is the variation of gravity with latitude that you alluded to: you weigh about 0.5% more at the poles than on the equator. ... Second, gravity does indeed change with altitude.
b). That's because the planets weigh different amounts, and therefore the force of gravity is different from planet to planet. For example, if you weigh 100 pounds on Earth, you would weigh only 38 pounds on Mercury. That's because Mercury weighs less than Earth, and therefore its gravity would pull less on your body.
How much work is done on a small car if a 3150 N force is exerted to move it 75.5 m to the side of the road
Answer:
Explanation:
Work = Force times displacement. Therefore,
W = 3150(75.5) so
W = 238000 N*m
Humans sleep in cycles, usually two or three cycles per night. There is a point in each cycle when waking up will leave the sleeper feeling the most rested and refreshed.
After learning about this, a computer programmer designed a new smartphone alarm clock. This new alarm clock uses sensors in the smartphone to detect the sleeper’s motion and determine when the sleeper has reached the best point in the sleep cycle at which to wake up. The app can be downloaded onto any smartphone. Most users who download this app find that it does not help them wake up feeling more refreshed, but they are willing to try improved products in the future.
Which criterion did this sleep cycle alarm clock fail to meet?
It did not solve the problem.
It was not cost effective enough.
It was not readily available.
It was not safe for most users.
Answer:
A
Explanation:
It did not solve the problem.
14. The resistance of dry human skin is about 500,000 ohms and wet,
sweaty, human skin is about 1000 ohms. How much current passes across
someone's fingers if they touch the leads of a 9 Volt battery when their skin
is WET?
Answer:
current is equal to V/R
Explanation:
I = 9/1000A
[tex]9 \times 10 ^{ - 3} [/tex]
Check out the list of scientific names. These names all represent animals. These are all annals but they cannot reproduce fertile offspring with each other. What conclusion can be drawn from the past statement?
Answer:
None of the animals are from the same species
Explanation:
The exact question is as follows :
Given -
Felis catus
Sylvilagus audubonii
Parus inornatus
Euarctos americanus
Check out the list of scientific names. These names all represent animals. These are all animals but they cannot reproduce to produce fertile offspring with each other.
To find - What conclusion can be drawn from the past statement?
Solution -
The conclusion we can made from past statement is that - None of the animals are from the same species
Reason -
When two members of the same species reproduce, they produce fertile offspring.
According to the scientific names of the animals, there are different genus and species names.
PLS PLS HELP FOR BRAINLIEST!!!!!!!!!!!!
Option A: The air molecule moves from the girl's mouth to the ear of her friend