19. Below is a graph of the power used by a resistor 40 35 30 25 20 15 10 5 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 time (seconds) a. What is the peak power used by the resistor? b. What is the average power used by the resistor? c. What is the period of the power? (hint – remember this is a sin squared function. The negative part of the normal sine function is flipped positive. So you have to go over two bumps to get back to the start of the wave.) power (watts)

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Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.