What is the highest point at which weather will generally occur? A. 50 km
B. 20 km
C. 85 km
D. 700 km

Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?

What is the scientific definition of energy that relates to work

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?