A baseball pitcher in good form can throw a baseball that attains a speed of 86 mi/h in a distance of 1.3 m. Assume that the ball starts from rest and its mass is 0.15 kg. Determine the average force (in N) exerted on the ball.

Avehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road

Which wave is the result of amplification and produces a louder sound

A980-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6m before stopping.the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed?