A pendulum swings as shown in the diagram. At which position is the kinetic energy of the
pendulum bob least?
A. A
В. В
C.
C D D
Starin

An ionic compound can conduct electricity when a it is dissolved in water b its crystals are ground into powder c it is in solid form d it is heated to just below its melting point

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.

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