A 25.0-lb child is standing on the edge of a merry-go-round whose radius is 33.0 inches. The marry-go-round spins, completing 38 complete rotations every minute. What is the child’s weight (in the sense of the force of gravity acting on him?

Alexander calder's mobiles are an example of motion because it uses forces of wind and water.

Which accurately compares concave and convex lenses?

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.