A purple neon sign emits light waves with which of the following wavelengths? O red and blue wavelengths O purple wavelengths O wavelengths but purple O all wavelengths

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

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.