If the net work done on an object is negative, then the object's kinetic energy
A) decreases.
B) remains the same.
C) increases.
D) is zero.
E) cannot be determined without knowing the object's mass.
A
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A. The gasoline has about 400 times as much energy. B. The gasoline has about 10 times as much energy. C. The gasoline has about 70 times less energy. D. They cannot be honestly compared, since one stores power and the other stores energy.
A habitable zone
A) exists around all stars B) only exists around stars which are identical to the Sun C) only exists around stars which are similar to our Sun D) only exists around one star, the Sun
A Michelson interferometer is used with 600 nm light. How far does the adjustable mirror move as the fringe pattern goes from a bright fringe to the next bright fringe?
1.1200 nm 2.600 nm 3.300 nm 4.150 nm
A 2 000-kg sailboat experiences an eastward force of 3 000 N by the ocean tide and a wind force against its sails of magnitude 6 000 N directed toward the northwest (45° N of W). What is the magnitude and direction of the resultant acceleration?