Rock at the top of a 20 m tall hill the rock has a mass of 10 kg how much potential energy does it have

Suppose you are planning a trip in which a spacecraft is totravel at a constant velocity for exactly six months, as measuredby a clock on board the spacecraft, and then return home at thesame speed.

Because gasoline is less dense than water, drums containing gasoline will float in water. suppose a 240-l steel drum is completely full of gasoline.

When was the copernican treatise published

A car with a constant velocity of 22 m/s is driven for 6.8 s. How far did it travel? A. 29 m B. 154 m C. 150 m D. 3 m

What is needed to reverse the process?

Which physical parameter more than any other most probably controlled the early evolution of the planetary system and dictated the characteristics of the planets that eventually formed?

Planet happy is about 250,000 miles from one of its moons. If you travel at a speed of 6000miles per hour, how many weeks will it take you to get there?

A certain radioactive substance has a half life of one hour. if you start with 1g of the material at noon how much will be left at 3:00 PM?

Would two north poles attract each other or push away frim each other

Who was the first man to go into the orbit? a. alexander leonov b. deke slayton c. valentina tereshkova d. yuri gagarin