When you blink your eye, the upper lid goes from rest with your eye open to completely covering your eye in a time of 0.024 s.
a. estimate the distance that the top lid of your eye moves during a blink.
b. what is the acceleration of your eyelid? assume it to be constant.
c. what is your upper eyelid's final speed as it hits the bottom eyelid?

What law energy has never been broken

Ben(55 kg) is standing on very slippery ice when junior(25kg) bumps into him. junior was moving at a speed of 8m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision .

Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 µt to 600 µt in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?