Acar has a kinetic energy of 1.9 x 10^3 joules. if the velocity of the car is decreased by half, what is the kinetic energy a.)2.2 x 10^2 joules b.)4.7 x 10^2 joules c.)5.2 x 10^2 joules d.)5.8 x 10^3 joules

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.

The researcher who studied the ability of cats to learn to escape from puzzle boxes was

Agust of wind pushes a beach ball with a force of 9 newtons. the ball rolls 10 meters in 3 seconds. what is the power of the wind? 900 w 90 w 30 w 3 w