During a windy storm, a branch breaks off from a tree at a height 12.0 m from the ground. Calculate the velocity of the branch right before it hits the ground.

Explain the consequences of this addiction to the brain tissue

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.

Simple machines can a. increase force only b. decrease force only c. increase or decrease force