The average distance between Earth and the Sun is called a light-year
Indicate whether the statement is true or false
False
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A body oscillates with simple harmonic motion along the x axis. Its displacement varies with time according to the equation x = 5.0 sin (?t + ?/3). The velocity (in m/s) of the body at t = 1.0 s is
a. +7.9 b. ?7.9 c. ?14 d. +14 e. ?5.0
When a sky diver exits an airplane his
A. acceleration is at a maximum. B. velocity is at a maximum. C. acceleration remains constant. D. acceleration is at a minimum.
A 33 mH inductor has a current going through it that is increasing at a rate of 2.3 A/s. What is the magnitude of the induced emf in this coil?
A. 33 mV B. 76 mV C. 13 mV D. 95 mV E. 2.5 V
It requires 0.30 kJ of work to fully drive a stake into the ground. If the average resistive force on the stake by the ground is how long is the stake?
A) 0.36 m B) 0.23 m C) 0.31 m D) 0.41 m