Astronaut Jennifer's lifeline to her spaceship comes loose and she finds herself stranded, "floating" 100 m from the mothership. She suddenly throws her 2.00-kg wrench at 20 m/s in a direction away from the ship
If she and her spacesuit have a combined mass of 200 kg, how long does it take her to coast back to her spaceship? A) 1000 s
B) 750 s
C) 500 s
D) 250 s
E) 2.50 min
C
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Energy in Capacitors: Doubling the potential across a given capacitor causes the energy stored in that capacitor to
A. quadruple. B. double. C. reduce to one-half. D. reduce to one-fourth.
The force of gravity is an inverse square law. This means that, if you double the distance between two large masses, the gravitational force between them _________________.
Fill in the blank(s) with the appropriate word(s).
Light of wavelength 687 nm is incident on a single slit 0.75 mm wide
At what distance from the slit should a screen be placed if the second dark fringe in the diffraction pattern is to be 1.7 mm from the center of the diffraction pattern? A) 0.39 m B) 1.9 m C) 1.1 m D) 0.93 m E) 0.47 m
The path of a light ray through a refracting surface is reversible
Indicate whether the statement is true or false