Wednesday

April 16, 2014

April 16, 2014

Posted by **Technoboi11** on Wednesday, March 7, 2007 at 1:09am.

(a) If the probe is launched with an initial kinetic energy of 5.0 107 J, what will be its kinetic energy when it is 4.0 106 m from the center of Zero?

(b) If the probe is to achieve a maximum distance of 8.0 106 m from the center of Zero, with what initial kinetic energy must it be launched from the surface of Zero?

Use the rel;ationship

KE + Potential energy) = constant.

The potential energy at distance R from the center is

-GMm/R

M is the planet's mass and m is the probes.

That means (1/2) mV^2 - GMm/R = constant

Use that fact to compute the unknown kinetic energy in each problem

**Related Questions**

physics - Zero, a hypothetical planet, has a mass of 5.7 x 1023 kg, a radius of ...

Physics - Zero, a hypothetical planet, has a mass of 4.0 1023 kg, a radius of 3....

Physics - Zero, a hypothetical planet, has a mass of 1.0 1023 kg, a radius of 3....

Physics - Zero, a hypothetical planet, has a mass of 2.7 x 10^23 kg, a radius of...

Physics - Zero, a hypothetical planet, has a mass of 2.7 x 10^23 kg, a radius of...

Physics/Math - The Formula you use is the correct one. However, consider this. ...

physics - Zero, a hypothetical planet, has a mass of 3.0*10^23 kg, a radius of 3...

Physics/Math - Ok...I figured out part a but I am having trouble with b. part a ...

Physics - Zero, a hypothetical planet, has a mass of 1.0x10^23 kg, a radius of 3...

Physics/Math - Ok...I figured out part a but I am having trouble with b. part a ...