As part of a Physics investigation, a student launches a bean bag out of an open window with a velocity 4.5 m/s at an angle of 25° above the horizontal. If the winds is 12 m above the ground, how far away from the building must the student’s friend stand to catch the bean bag at ground level?

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

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.

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx