Solve the following problems using appropriate equation: W = Fd, F = W/d and d = W/F
1) How much work is done when 80N force is applied on a desk to move it
horizontally through 12m? I

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

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

Which accurately compares concave and convex lenses?