The elastic potential energy (Ep) is given by

Data:
Ep = ? (Joule)
k = 20 N/m
x (displacement) = 0.20 m
Solving:




D. 128.25 because force=mass x acceleration
it allows only a reduced number of electrons to flow through it.
Answer:
They developed during the Cambrian time period, which was around 530 million years ago.
Explanation:
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Answer:4 times more energy will be striking the childbearing
Explanation:
Because Volume is directly proportional to amplitude of sound. Energy is proportional to amplitude squared. If you triple the amplitude, you multiply the energy by 4