Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

What is work? how much work is done to move an object 0 meters?

Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value