Aball rolls horizontally off the edge of a table that is 1.20 m high. it strikes the floor at a point 1.52 m horizontally away from the edge of the table. what is the speed of the ball the instant it leaves the table? give your answer in m/s : a) 3.07 m/s b) 4.85 m/s c) 3.43 m/s d) 2.17 m/s

During takeoff, the sound intensity level of a jet engine is 170db at a distance of 34 m. what's the sound intensity level at a distance of 1.0 km?

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 free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is