Red: Distance = 3 x Time Blue: Distance = 2 x Time

A student is asked to predict the time it would take for the blue marble to travel 4 meters. What is the time?

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

Asmall grinding wheel has a moment of inertia of 4.0×10−5 kg⋅m2 . what net torque must be applied to the wheel for its angular acceleration to be 150 rad/s2 ?

Positive ions differ from neutral atoms in that