Causing an object to start moving on a frictional surface requires
A. less force than is needed to keep it moving on the surface.
B. the same force as is needed to keep it moving on the surface.
C. more force than is needed to keep it moving on the surface.
D. a force equal to the weight of the object.
E. a force opposite to the normal force.
C. more force than is needed to keep it moving on the surface.
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The three stars of the Summer Triangle are
A) Antares, Arcturus, and Spica. B) Arcturus, Vega, and Algol. C) Deneb, Spica, and Vega. D) Vega, Deneb, and Altair. E) Altair, Antares, and Arcturus.
______________ (how many?) tidal bulges "move" around Earth daily
Fill in the blank(s) with correct word
The discovery of Charon was significant because it allowed astronomers to determine the ________ and ________ of Pluto.
A. radius; speed B. age; mass C. speed; distance D. distance; age E. mass; radius
Two capacitors with CA greater than CB and are connected in series with a battery. Which of the following is true?
a. There is more charge stored on CA. b. There is more charge stored on CB. c. There is the same charge stored on each capacitor. d. There is the same potential difference across both capacitors.