A car has wheels radius of 0.380 m and they rotate once every 0.100 s. What is the linear velocity of the wheels?

What is the fate of the electrons that interact with a specimen in an electron microscope?

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?