Relative to the ground below, how many joules of potential energy does a 1000-kg boulder have at the top of a 5-m ledge?

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter

How does an observation about an object differ from an inference about that object