What is. 145kg * 9.8m/s2

Which of the following is not considered an alternative source of energy? a. solar energy c. geothermal energy b. wind and water energy d. natural gas

The sudden drain of a magma chamber can form a caldera. True False

Sound waves are a type of mechanical wave and can therefore travel through space because they do not require a medium. True False

For an isothermal process, the work done by or a system of ideals gas is equal to change in what A the work done is equal to the change in internal energy B the work is equal to the change in heat energy C the work done is equal to change in entropy

if you shout into the grand canyon your voice travel at the speed of sound (340m/s) to the bottom of the canyon. how depp is the grand canyon at a spot where someone at the bottom can hear your voice 3.5 seconds after you shout

The amount of force needed to keep a 0.1kg basketball moving at a constant speed of 6 m/s on frictionless ice is ___ N

What three forms of kinetic energy can a polyatomic molecule have?

A parachutist bails out and freely falls 50 m. Then the parachute opens, and thereafter she deceler - ates at 2.0 m/s2. She reaches the ground with a speed of 3.0 m/s.

Why the weight of a body decreases with increases in distance from the earth's surface

On a fishing trip Justin rides in a book 12 km south. The fish aren't biting so they go for kilometers west. They then follow a school of fish 1 km north. What distance did they cover? What was their displacement?