You want the current amplitude through a 0.450-mh inductor (part of the circuitry for a radio receiver) to be 1.80 ma when a sinusoidal voltage with amplitude 12.0 v is applied across the inductor. what frequency is required?

Describe the path of a ray that approaches a mirror parallel to the principal axis.

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?