A70kg box is slid along the floor by a 400n force. the coefficient of friction between the box and the floor is 0.5 when the box is sliding. find the acceleration of the box

Suppose you use a machine that gives you a mechanical advantage of 2 to achieve an output force of 30newtons what must the input force be

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.