Which part of the ear picks up vibrations from the atmosphere?

eardrum

bones of the middle ear

hair cells

nerve from the inner ear

What best describes an impulse acting on an object

If you were given initial and final velocities and the constant acceleration of an object, and you were asked to find the displacement, what equation would you use?

An angle marking is like a meter stick marking. The marking of 1.2m on a meter stick only means an object is 1.2m long if the object starts at zero meters. If it starts at 0.2 meters then the object is really 1.0 meters long.

Peter and Fred are skateboarding in a large semicircular halfpipe. Peter starts out from rest at a height h and collides with Fred standing at the bottom. Peter and Fred have about the same mass. After the collision, which height will Fred reach?

According to the universal law of gravity, everything has a gravitational force. a. True b. False

A brick with a mass of 20 kg and a weight of 196 N is released on a frictionless plane at an angle of 30°. What is the acceleration of the brick? A. 4.9 m/s2 B. 5.6 m/s2 C. 8.5 m/s2 D. 9.8 m/s2

7. What are the 3 types of air resistance and explain them?

Which model of the atom first introduced the idea of a nucleus? Question options: Thomson's model Dalton's model Rutherford's model Bohr's model

A gymnast practices two dismounts from the high bar on the uneven parallel bars. during one dismount, she swings up off the bar with an initial upward velocity of + 4.0 m/s.

Your friend, who is age 15 and has a resting heart rate of 70, wishes to start a jogging program. What would you suggest as a proper starting target heart rate? 138 115 178 155