Definition: a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
Using the formula KE=1/2mv^2
a: The kinetic energy doubles.
b: The kinetic energy quadruples.
c: The kinetic energy is cut in half.
Hopefully it’s clear how the formula can show you this.
Answer:a computer , machine forcery,0,push
Explanation:
The loudness was increased by the amplifier which converted electrical energy into sound energy.