Use a ballistic cart to shoot a small ball into the air. Push the cart along a track, allowing it to release the ball. What explains why the cart always catches the ball, and the ball doesn't
fall behind the moving cart?

Me ! mark u as brainlest! the speed of a sound wave depends on question 7 options: a) the frequency. b)the medium. c)the air temperature. d)both air temperature and medium.

Amplitude is a measure of a waves a; speed b; distance c; energy d; frequency

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.