Question

Calculate the energy of the moon orbiting the earth.​

Answer 1

The energy of the moon orbiting the earth is calculated below:

We know that energy of nth orbit, En = -K/n2 where K is a constant.

The change in energy is: ΔE=Eorbit−Esurface=2.98×1011J.

To get the kinetic energy, we subtract the change in potential energy from

Example 13.6, ΔU=3.32×1010J.

That gives us

Korbit=2.98×1011−3.32×1010

=2.65×1011J.

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Answer 2

Explanation:

The energy of the moon orbiting the earth is calculated below:

We know that energy of nth orbit, En = -K/n2 where K is a constant.

The change in energy is: ΔE=Eorbit−Esurface=2.98×1011J.

To get the kinetic energy, we subtract the change in potential energy from

Example 13.6, ΔU=3.32×1010J.

That gives us

Korbit=2.98×1011−3.32×1010

=2.65×1011J.