If my science fair topic is do people prefer singers of the same sex, what would be my independent and dependent variable?

The system is released from rest with the cable taut, and the homogeneous cylinder does not slip on the rough incline. determine the angular acceleration of the cylinder and the minimum coeffi cient s of friction for which the cylinder will not slip.

The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? a b c d

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.