The repeating trends that take place when examining the elements are called
A) periodic.
B) the family cycle.
C) the metal shift.
D) a group conscience.
E) none of the above
Answer: A
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When you compress air with a tire pump, the air temperature in the tire
A) increases. B) decreases. C) remains unaffected. D) none of the above
An object is released from rest at a distance h above the surface of a planet (mass = m, radius = r
A.
B.
C.
D.
E.
If one could transport a simple pendulum of constant length from the Earth's surface to the Moon's, where the acceleration due to gravity is one-sixth (1/6) that on the Earth, by what factor would the pendulum frequency be changed?
a. about 6.0 c. about 0.41 b. about 2.5 d. about 0.17
Two bodies with masses m1 and m2 are both moving east with velocities of magnitudes v1 and v2, where v1 is less than v2 . The magnitude of the velocity of the center of mass of this system of two bodies is
a. less than v1. b. equal to v1. c. equal to the average of v1 and v2. d. greater than v1 and less than v2. e. greater than v2.