Auniform rod is 1.80 m long and has mass 1.80 kg. a 2.80 kg clamp is attached to the rod. how far should the center of gravity of the clamp be from the left-hand end of the rod in order for the center of gravity of the composite object to be 1.30 m from the left-hand end of the rod?

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?