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katen-ka-za [31]
3 years ago
13

Friction removes energy from objects in motion. Which statement best describes how this works?

Physics
1 answer:
xenn [34]3 years ago
8 0

<em>friction transforms KE into thermal energy (a)</em>

That's why, if it goes on long enough, the moving object actually gets warm.

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It would be 300 cm/h
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"The International Space Station (ISS) orbits at a distance of 350 km above the surface of the Earth. (a) Determine the gravitat
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Answer:

(a) g = 8.82158145m/s^2.

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(a) Strength of gravitational field 'g' by definition is

g = \frac{M_{(earth)} }{r^2} G , here G is Gravitational Constant, and r is distance from center of earth, all the values will remain same except r which will be radius of earth + altitude at which ISS is in orbit.

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(b) We have to essentially calculate centripetal acceleration that equals new 'g'.

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plugging in r and g in above and solving for unknown gives V = 7699.990192m/s.

(c)  S = vT,  here T is time period or time required to complete one full revolution.

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3 years ago
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