Which term does the phrase "an explanation of a natural phenomenon that is supported by facts gathered from many scientific investigations" best describe?

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z

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.

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?