3 years ago

What would happen to the moon if the earth stopped exerting the force of gravity onto it?

1 answer:

nataly862011 [7]3 years ago

5 0

It would drift away from the Earth and enter its own orbit around the sun. It would become the 9th planet, in an orbit very close to Earth's orbit. (Our moon is larger than Pluto, and almost as large as Mercury.)

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A 2 kg ball if at rest. If the ball accelerates to 20 m/s, what is the change in momentum?

katrin [286]

Answer:

change in momentum

20m/s x2=40kg/m

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2 years ago

A garden hose has a radius of 0.0120 m, and water initially comes out at a speed of 2.88m/s. Dasha puts her thumb over the end ,

creativ13 [48]

Answer:

v = 12.4 [m/s]

Explanation:

With the speed and Area information, we can determine the volumetric flow.

$V=v*A\\A=\pi *r^{2}$

where:

r = radius = 0.0120 [m]

v = 2.88 [m/s]

$A=\pi *(0.0120)^{2} \\A=4.523*10^{-4} [m]\\$

Therefore the flow is:

$V=2.88*4.523*10^{-4} \\V=1.302*10^{-3} [m^{3}/s ]$

Despite the fact that you cover the inlet with the finger, the volumetric flow rate is the same.

$v=V/A\\v=1.302*10^{-3} /1.05*10^{-4} \\v=12.4[m/s]$

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2 years ago

Please need help on this

neonofarm [45]

Answer:

Explanation:

Geothermal energy is heat driven within the sub-surface of the earth. Water and/or steam carry the geothermal energy to the earth surface.

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3 years ago

Which term could be used to explain why someone could safely sit on a hot wooden bench but not a hot metal bench? A. Radiation B

PilotLPTM [1.2K]

B. specific heat capacity
hope this helps

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2 years ago

Read 2 more answers

how can you tell, as you walk close to a parked car, if it had been running recently? describe your reasoning in terms of energy

Blababa [14]

This question is probably referring to heat energy transferring from the car to its surroundings.

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3 years ago