Awoman drops a vibrating tuning fork, which is vibrating at 513 hertz, from a tall building. through what distance (in m) has the tuning fork fallen when the frequency detected at the starting point is 489 hertz? (assume the speed of sound in air is 343 m/s.)

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied. true or false

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =