Hich statement is true about white light?

question 8 options:

a. it makes all objects appear white.

b. it contains all of the wavelengths of the visible light spectrum.

c. it contains all of the waves of the electromagnetic spectrum.

d. it can be seen when all colors are absorbed.

How would doubling the made of an object change the objects potential energy

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.

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.