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Nataly_w [17]
3 years ago
7

Which statement aboutſatmospheric pressure near Earth's surface is true?

Physics
1 answer:
Marizza181 [45]3 years ago
6 0

Answer:

Option B) It decreases as someone moves away from earth's surface.

Explanation:

The atmospheric pressure at the surface of the earth is at maximum, it is seen that as we move away from the surface of the earth the pressure decreases. As on the top of mountains the atmospheric pressure is found to be low as compared to the surface of the earth.

It is assumed that the atmospheric pressure is caused due to hydrostatic measurements where the changes caused by weight of air are measured.

Also, it is observed that when there is an  elevation, the atmospheric pressure decreases.

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Work must be done by (kinetic or potential energy)
MrRissso [65]

Answer:

I believe it is kinetic

Explanation:

Kinetic energy is in physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.

So if something is doing work it has kinetic energy

5 0
3 years ago
Jake calculates that the frequency of a wave is 230 hertz, and its wave is moving at 460 m/s. What is the wavelength of the wave
Nesterboy [21]

Wavelength = (speed) / (frequency) = (460 m/s) / (230/sec) = <em>2 meters</em>


3 0
3 years ago
Compare the kinetic energy of a 20,000-kg truck moving at 110 km/h with that of an 80.0-kg astronaut in orbit moving at 27,500 k
laiz [17]
Kinetic energy is the energy that is possessed by an object that is moving. It is calculated by one-half the product of the mass and the square of the velocity of the object. We calculate as follows:<span>

For the truck,
KE = mv^2 / 2
KE = 20000 kg (110 km/h (1 h/3600 s)(1000 m / 1 km))^2 / 2
KE = 611111.11 J

For the astronaut,
KE = 80.0 kg (27500 km/h</span>(1 h/3600 s)(1000 m / 1 km)<span>)^2/2
KE = 611111.11 J

The kinetic energy possessed by the two bodies are the same.

</span>
3 0
3 years ago
The crisis in Erikson’s identity versus role confusion stage of psychosocial development is that the individual must __________.
sergeinik [125]

C. realize who or what one wants to be

8 0
3 years ago
Read 2 more answers
Explain why it is important that the balloon is made from an electrical insulator.
aleksandr82 [10.1K]

Explanation:

object made of rubber, such as the ballons are elecrical insulators, meaning that they resist electric charges flowing through them..

when the ballon has been rubbed enough times to gain a sufficient negative charge, it will be attracted to the wall

8 0
3 years ago
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