A. Make your own radio transmitter Materials: 9-volt battery and coin
procedure:
1. Take the new battery and coin.
2.Bring the AM radio near you and tune it to the area where you hear astatic.
3.Repeatedly tap the two terminals of the battery with a coin.
QUESTION: Describe the sounds produced.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.