Recent content by didinyc

Homework Statement The major difference between a jet engine and a rocket engine is that a rocket carries its own oxidizer, usually in the form of liquid oxygen (LOX). A jet takes in air from the atmosphere as it moves, uses it to burn the fuel, and then ejects all the gases out the back...

thank you! I tried what you said too but the answer that i got is wrong.It is really close answer except the 2 in front of the R in the v equation! so this is what i got as my result: v= sqrt2gh *(1-(h/R))!

Homework Statement Suppose an object is dropped from height h above Earth where h<<R, but is large enough so g, the acceleration due to gravity, is NOT constant! Show that speed with which it hits the ground, neglecting friction, is approximately, v= sqrt2gh *(1-(h/2R)) Hint: you will need...