Calculate the potential energy of a 20 kg object at rest on a ledge 30 meters above the ground. O 600 J
O 6.5 J
O 50 J
O 9000 J
5886 J

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

What is a costume plot? why is it important to a film or theater production?

Apotter's wheel moves uniformly from rest to an angular speed of 0.20 rev/s in 32.0 s. (a) find its angular acceleration in radians per second per second. rad/s2 (b) would doubling the angular acceleration during the given period have doubled final angular speed?