Which describes how to compare the energy of two different waves?

a. measure their frequencies

b. measure their periods

c. measure their amplitudes

d. measure their wavelengths

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

Dangers of static electricity and how to prevent them.

The number of loops in the primary coil divided by the number of loops in the secondary coil equals the voltage in the primary coil divided by the voltage in the secondary coil if the volunteer attached to the primary coil read 100 volts what would the voltmeter attached to the secondary coil read