A mass of 1.0 kg lies on a plane inclined at an angle of 20° to the horizontal as shown in the diagrain alongside.
The components of the weight parallel (W) and perpen-
dicular (W_) to the plane are

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

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.

What is the major limitation to the light microscope?