A resistor dissipates 1.95 W when the rms voltage of the emf is 10.5 V . Part A At what rms voltage will the resistor dissipate 10.5 W

Arod of some material 0.20 m long elongates 0.20 mm on heating from 21 to 120°c. determine the value of the linear coefficient of thermal expansion [in (degrees c)^-1] for this material.

Often called simply "velocity," this is the velocity of an object at a particular moment in time.

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy