When a pitcher throws a baseball, it reaches a top speed of 42 m/s. If the baseball takes 2 seconds to travel from the pitcher to the catcher, what is its acceleration? (Assume the ball is moving at O m/s right before it leaves the pitcher's hand.) O A. 15 m/s2 O m B. 48 m/s2 O c. 36 m/s D. 21 m/s2 SUBMIT​

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?

Hey student studies gravity using objects that have the same mass which two objects have the greatest gravitational force acting between them a. 100kg 1.0m 100kg b. 100kg 2.0m 100kg c. 100kg 2.0m 100kg big d. 100kg big 3.0m 100kg big

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot