If the magnitude of the velocity of an object increases, we may be sure that during the time of this increase,
a. the object is accelerated.
b. the acceleration of the object increases.
c. the object is moving in a straight path.
d. the object is changing direction.
e. none of these
a
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Quasars must be small because they
a. have high radial velocities. b. are very luminous. c. are surrounded by quasar fuzz. d. radiate huge amounts of energy. e. fluctuate rapidly on time scales as short as a few hours.
What are the three types of pressure that can push against the inward force of gravity? Explain what causes each pressure and where it would be likely to occur
What will be an ideal response?
The maximum value of longitude is ______________
Fill in the blank(s) with correct word
As a truck moves away from a person with its horn blowing, the person hears a frequency ______________ than that of the horn
Fill in the blank(s) with correct word