Ahairdryer is plugged into a 110-volt outlet. the hairdryer draws 4 amps of current. how much power (in watts) does the hairdryer consume? how much energy will be used in 5 seconds?

Apiano tuner uses a tuner to create a tone of 5.00 x 10² hz. when a key on the piano is struck he hears 5 beats per second. what is a possible frequency of vibration for the piano string? 2500 hz 1300 hz 605 hz 495 hz

The step-down transformer gives a current of 10a at 24v if the primary voltage is 240v calculate the 1_primary current 2_the power input 3_the power output

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.