Abowling ball has a mass of 5 kg. a student rolls the bowling ball one time at 1 m/s and a second time and 2 m/s. compare the momentum of the bowling ball when it has the velocity of 1 m/s and when it has the velocity of 2 m/s

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

In a system, when potential energy decreases, then entropy also decreases. true false

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?