The value of an object's acceleration may be characterized in equivalent words by which of the following?
a. displacement
c. velocity
b. rate of change of displacement
d. rate of change of velocity
D
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The photons coming from an excited gas create a(n) ____ spectrum
a. absorption b. emission c. continuous d. Doppler e. ionization
Two boxes of the same mass sit on a rough floor. These boxes are made of the same kind of cardboard and are identical except that one is twice as large as the other. If it takes 200 N to start moving the smaller box, how much force does it take to start moving the larger one?
A. Still 200 N B. 400 N C. 800 N D. It depends (specify)
You hold one end of a solid rod in a fire, and the other end becomes hot. This is an example of __________
Fill in the blank(s) with correct word
______________ is the largest known asteroid
a. Pluto b. Mars c. Ceres d. Vesta e. Mercury