If a baseball has a negative velocity and a negative acceleration, its speed is?

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.