Monday

September 1, 2014

September 1, 2014

Posted by **Technoboi11** on Friday, March 9, 2007 at 10:46pm.

(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?

>>>>>>>>>>>>>>>>>>>>>>>>>>>>

What equation do I start with?

I tried using:

E = KE - GMm/R and came up with the wrong answer. Am I doing something wrong? PLEASE HELP!

**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/Math - Zero, a hypothetical planet, has a mass of 1.0 1023 kg, a radius ...

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 2.7 x 10^23 kg, a radius of...

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/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...