Potential energy calculation - MxGxH. Gravity equals 10. How much potential energy does a 5 gram golf ball that is falling from 40 ft have?

Aquarterback pedals 3.3meters southward and then run 5.7meters northward. whats the distance ? and whats the displacement?

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same

Contrast the force of gravity between these pairs of objects: 1-kg mass and a 2-kg mass that are 1 m apart; a 1-kg mass and a 2-kg mass that are 2 m apart; and two 2=kg masses that are 1 m apart. i dont understand.