Answer:
5 meters per second
explanation
sana po makatulong
Derive formula of time period of S.H.M.
Answer:
it os shm and yea because of the smh
Explanation:
smh
A 30 kg box is pushed along a horizontal surface. The person pushing the box pushes with a constant force of 300 N directed at an angle of 30° below the horizontal. If the box starts from rest and reaches a speed of 5 m/s after only 2 seconds of pushing, find the force of friction acting on the box.
Answer:
aye son yall think if i keep answering these questions incorrectly.. they'll find out what im doing and take my li points back?
Explanation:
Choose the correct answer?
Answer:
B
Explanation:
Clay bricks are used as building materials in construction. Do some research on specific heat capacities of brick, concrete, stone etc. and advise on what this means for society.
Answer:
It means it is the main building block material for society.
Specific heat is the amount of heat energy that causes a unit increase in temperature by required to be added to the unit mass of the substance. It can be measured by the heat capacity of a particular substance. The unit of specific heat is joule/kg/kelvin.
Material Specific heat capacity Thermal conductivity
Clay 1000 0.60
stone 1000 1.8
brick 800 0.73
concrete 1000 1.13
Advice on what this means for society:
Thermal interaction in between indoor and outdoor environments regulated by wall components.The structural and thermal properties influence the behavior of building and fabricating the bricks, stone and others. Clay Bricks are durable, and natural of stable value. A modern building must comply with numerous ecological and economic demands.Learn more about specific heats:
https://brainly.com/question/21041726
A double slit produces a diffraction pattern that is a combination of single and double slit interference. Find the ratio of the width of the slits to the separation between them, if the first minimum of the single slit pattern falls on the fifth maximum of the double slit pattern. (This will greatly reduce the intensity of the fifth maximum.)
Answer:
The ratio of the width of the slits to the separation between them is 1:5
Explanation:
For this set of question
n = 1, m = 5
As we know for nth minimum
[tex]D sin\theta =n \lambda[/tex]
For mth Maximum
[tex]d sin\theta =m \lambda[/tex]
From the above two equations we get
[tex]Sin\theta = \frac{1*\lambda}{D} \\d * \frac{1*\lambda}{D} = 5 *\lambda\\\frac{D}{d} = \frac{1}{5}[/tex]
The ratio of the width of the slits to the separation between them is 1:5
I Need Help, Thank you! ^^ <3
How can global warming lead to changes to the Earth’s surface?
a.
Global warming can lead to an increased number of earthquakes, which change the Earth’s surface.
b.
Global warming can lead to glaciers melting, causing flooding to areas and the decrease of glacial land masses.
c.
Global warming leads to a decrease in water levels of coastal wetlands.
d.
Global warming cannot lead to changes to the Earth’s surface.
Please select the best answer from the choices provided
A
B
C
D
Answer:
A
Explanation:
But global warming will have additional, far-reaching effects on the planet. Warming modifies rainfall patterns, amplifies coastal erosion, lengthens the growing season in some regions, melts ice caps and glaciers, and alters the ranges of some infectious diseases.
Answer:
I think it is B since Global warming can lead to glaciers melting and cause flooding since the water will get warmer resulting in the ocean rising, which causes flooding
Explanation:
A magnet can generate an electric current in a wire if the magnet is close enough to the wire and if the magnet is also
A.)strong
B.)weak.
C.)at rest.
D.)in motion.
Answer:a stro
Explanation:
A magnet can generate an electric current in a wire if the magnet is close enough to the wire and if the magnet is also in motion. The correct answer is D) in motion.
What is electromagnetic induction?When a magnetic field is in motion with respect to a conductor, such as a wire, it induces an electric current in the wire. This is because the changing magnetic field creates a changing electric field around the wire, which causes electrons to flow. The induced electric current is proportional to the rate of change of the magnetic field. This consequence is known as electromagnetic induction.
The strength of the magnetic field does affect the magnitude of the induced electric current, but the magnetic field must be in motion in order to generate an electric current.
A weak magnetic field can still generate an electric current in a wire if it is in motion with respect to the wire.
If a magnetic field is at rest, it will not induce an electric current in a wire. The magnetic field must be in motion in order to generate an electric current.
Thus, the correct answer is D) in motion.
Learn more about electromagnetic induction here:
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How you work out efficiency?
Answer:
The work efficiency formula is efficiency = output / input, and you can multiply the result by 100 to get work efficiency as a percentage. This is used across different methods of measuring energy and work, whether it's energy production or machine efficiency.
Explanation:
Hope this helped!!!
Which scenario did not include a chemical change?
Answer:
what scenario i dont understand
Explanation:
step by step explenation
heena wants to measure the volume of a ball that is 24 cm across. How should she set up her equation? v = one-third pi 24 squared (12). v = one-third p 12 squared (24). v = four-thirds pi 24 cubed. v = four-thirds pi 12 cubed.
Answer:
v = four-thirds pi 12 cubed.
Explanation:
A ball has a spherical shape. The volume of a spherical shape can be calculated using the following formula:
[tex]V = \frac{4}{3} \pi r^3[/tex]
where,
V = Volume of Ball = ?
d = diameter of the ball = length across the ball = 24 cm
r = radius of ball = d/2 = 24 cm/2 = 12 cm
Therefore,
[tex]V = \frac{4}{3}\pi (12)^3[/tex]
Hence, the correct answer is:
v = four-thirds pi 12 cubed.
What will be the mass of a body at the center of the earth as compared to other places on
the earth?
Answer:
The mass of the object does not change by moving it to another place. ... At the center of the earth the net gravitational force is zero, so the weight will be zero, but its masses will remain same. Hence the mass at the centre of earth will be equl to 50 kg.
Explanation:
It's because the mass of the object doesn't change by moving it to next place.
A 10cm3 sample of copper has a density of 897g/cm3. What is the mass of the sample?
A 10cm³ sample of copper has a density of 897g/cm³. What is the mass of the sample ?
Answer:-Given:-Density of sample of copper is 897g/cm³.
Volume of sample of copper is 10cm³.
To Find:-The mass of the sample.
Solution:-We know,
[tex] { \boxed{\bf{\rm \red {Mass \: = \: Density \: × \: Volume}}}} [/tex]
So, Mass = 897g/cm³ × 10cm³
Mass = 8970 g
The mass of the sample is 8970 g. [Answer]Put the following objects in order by their
weights with the heaviest first.
A) a glass bottle filled with air at atmo-
spheric pressure:
B) a glass bottle filled with helium at at-
mospheric pressure;
C) an empty glass bottle (vacuum inside).
?? Physics
Answer:
I Think its ABC
Explanation:
No air is the lightest
Helium is lighter than regular air that's why it goes up so then the regular air would be heaviest.
What do scientists use satellites for?
(there is no science colum)
Answer:
NASA satellites help scientists study Earth and space. Satellites looking toward Earth provide information about clouds, oceans, land and ice. They also measure gases in the atmosphere, such as ozone and carbon dioxide, and the amount of energy that Earth absorbs and emits. And satellites monitor wildfires, volcanoes and their smoke.
Explanation:
Hope this helps! :) have a great day.
1. GPS
2. Internet
3. Weather forecast
4. Observation
5. Experiments
6. Discovery
Which best describes what the observations have in common? They involve nuclear energy. They involve radiant energy. They involve changes in waves. They involve changes in energy.
Answer:
The answer is "They involve changes in energy".
Explanation:
Energy change is quite important in chemicals because nearly all reactions involve activation energy. They will learn and learn how to utilize different types of energy shifts in the steam cycle. A conversation about what drives chemical processes contributes to entropy and natural energy principles. It may shift from the shape of form. For example, chemicals might change to heat. Laser light can turn substances into power. Its energy can be changed into different kinds, but not wasted or produced.
Answer:
D
Explanation:
change in energy please give brainliest (edge 2021)
Please help! I will give Brainliest to first correct answer! :)
Answer: C
Explanation:
if its wrong pls tell me so i can correct myself
Electrons move from negative to positive while the voltage flows ________ to _______ .
Answer:
positive to negative.
Scienctists agree that the world's climate is getting hotter. What do you think might happen as a result of this climate change?
Answer:
Bad things
Explanation:
Global warming has many terrible effects on people and the earth itself
such as, death, birth defects, asthmea, breathing conditions, increased diseases.
Amy pulls a spring with a spring constant k = 100 stretching it from its rest length of 0.10 m to 0.2
Answer:
Elastic potential energy E = 0.5 J
Explanation:
Let us assume we have to find the elastic potential energy stored in the spring.
Given: k = 100
change in the length of the spring x = 0.2-0.1 = 0.1 m
Elastic potential energy
E = [tex]\frac{1}{2} kx^2[/tex]
plugging the values we get
[tex]E = 0.5\times100\times0.1^2\\=0.5 J[/tex]
Hence, Elastic potential energy E = 0.5 J
Amy pulls a spring with a spring constant k = 100 N/m, stretching it from its rest length of 0.10 m to 0.20 m.
What is the elastic potential energy stored in the spring?
Answer: 0.5 J
What two types of tactical communication vary based on whether or not you speak?
Answer:
If you don't have autism/deaf/anything like that you should be able to speak
Explanation:
Answer:
Verbal and nonverbal
Explanation:
Took the test
list and describe the units of power
Answer:
On the other hand, power is a scalar quantity and is basically the amount of energy consumed per unit time which has no direction.
Horsepower HP 746 watts
Kilowatts kW 1×103W
Megawatts MW 1×106W
Gigawatts GW 1×109W
The S.I unit of power is Watt(W) which is joule per second.
An ideal gas expands isothermally performing 4.30 x 10³ of work in the process. Calculate (a)
the change in internal energy of the gas, and (b) the heat absorbed during this expansion.
Answer:
The solution of the given query is explained below in the explanation portion.
Explanation:
Given value is:
Work,
⇒ [tex]W=4.30\times 10^3 \ J[/tex]
(a)
The change in the internal energy will be:
⇒ [tex]\Delta V=\frac{3}{2}nR(\Delta T)[/tex]
Throughout the isothermal procedure, The temperature will be constant "ΔT = 0".
then,
⇒ [tex]\Delta V = \frac{3}{2}nR(0)[/tex]
⇒ [tex]\Delta V = 0 \ J[/tex]
(b)
As we know,
⇒ [tex]\Delta V = Q-W[/tex]
On substituting the value, we get
⇒ [tex]0=Q-W[/tex]
On adding W both sides, we get
⇒ [tex]W=Q-W+W[/tex]
⇒ [tex]W=Q[/tex]
On substituting the given value of "W", we get
⇒ [tex]Q=4.30\times 10^3 \ J[/tex]
CAN SOMEONE PLEASE HELP FIGURE THIS OUT PLEASE
An archer shoots an arrow 75 m distant target; the bull's-eye of the target is at the same height as the release height of the arrow. If d = 75 m and v = 37 m/s. At what angle must the arrow be released to hit the bull's-eye if its initial speed is 37 m/s?
Answer:
[tex]16.25^{\circ}[/tex]
Explanation:
R = Horizontal range of projectile = 75 m
v = Velocity of projectile = 37 m/s
g = Acceleration due to gravity = [tex]9.81\ \text{m/s}^2[/tex]
Horizontal range is given by
[tex]R=\dfrac{v^2\sin2\theta}{g}\\\Rightarrow \theta=\dfrac{\sin^{-1}\dfrac{Rg}{v^2}}{2}\\\Rightarrow \theta=\dfrac{\sin^{-1}\dfrac{75\times 9.81}{37^2}}{2}\\\Rightarrow \theta=16.25^{\circ}[/tex]
The angle at which the arrow is to be released is [tex]16.25^{\circ}[/tex].
Why are fats and waxes solid at room temperature?
Answer:
Fats and waxes are solid at room temperature because they are made of saturated fatty acids. In contrast, oils are mostly unsaturated fatty acids. ... In contrast, unsaturated fatty acids have several kinks in their structure and therefore, are liquid at room temperature.
An effect analogous to two-slit interference can occur with sound waves, instead of light. In an open field, two speakers placed 1.19 m apart are powered by the same function generator producing sine waves at 1,163 Hz frequency. Assume that the speed of sound is 340 m/s. A student walks along a line 12.5 m away and parallel to the line from one speaker to the other speakers. She hears an alternating pattern of loud and quiet, due to constructive and destructive interference. What is the distance between the central maximum and the first maximum (loud) position along this line in m
Answer:
3.04 m
Explanation:
The interference by diffraction of waves is noticeable only when the dimension of the opening through which the wave is passing through is comparable to the wavelength of the passing wave.
It is given that :
Distance between two speakers, d = 1.19 m
Speed of sound, v = 340 m/s
The frequency is f = 1163 Hz
Distance the student walk along the line of the speaker, D = 12.5 m
We know the wavelength of the sound produced by the speakers is given by :
[tex]$\lambda=\frac{v}{f}$[/tex]
[tex]$=\frac{340}{1163}$[/tex]
= 0.29 m
Now the distance between the central maximum and the first maximum position is given by :
[tex]$y=\frac{\lambda D}{d}$[/tex]
[tex]$=\frac{0.29 \times 12.5}{1.19}$[/tex]
= 3.04 m
The atomic number of an element is also the number of
_________ element.
in an
A. Protons
B. Neutrons
C. Electrons
A 100 N force is applied to move an object a horizontal distance of 5 meters at constant speed in 10 seconds. How much power is done?
Answer:
50 W
Explanation:
Given :Force applied = 100 NDistance covered = 5 metresTime = 10 secondsTo find :
Power
Solution :For calculating power, we first need to know about the work done.
[tex] \bf \boxed{Work = Force \times displacement} [/tex]
Now, substituting values in the above formula;
Work = 100 × 5
= 500 Nm or 500 J
We know that,
[tex]\bf \boxed{Power=\dfrac{Work\:done}{Time\: taken}}[/tex]
Substituting values in above formula;
Power = 500/ 10
= 50 Nm/s or 50 W
Hence, power = 50 W .
HELP ME PLEASEEEEEEEEEEEEEEE
Use the kinetic energy equation to explain why speed has a greater impact on kinetic energy than mass.
Answer:
KE = 1/2 M V^2 Equation to express kinetic energy
Since the result depends linearly on M and to the second power on V,
V has greater effect on the result.
The magnetic field of a bar magnet Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Always points from north to south, whether we look outside the magnet or inside the magnet. b Always points from south to north, whether we look outside the magnet or inside the magnet. c Points from north to south outside the magnet, but south to north inside the magnet. d Points from south to north outside the magnet, but north to south inside the magnet.
Answer:
A: Always points from north to south, whether we look outside the magnet or inside the magnet
Explanation:
When we freely suspend a bar magnet, it's magnetic field will always rest in the north to south direction due to the fact that the Earth's magnetic south pole usually lies in the direction of the geographic north while the Earth's magnetic north pole usually lies in the direction of the geographic south.
Now, we all know that in magnets, like poles will repel and unlike poles will attract. What this now means is that the magnet will always point from the north to the south direction.