Gasoline can be used to power cars because it has
A) gravitational potential energy.
B) chemical potential energy.
C) electrical potential energy.
D) kinetic energy.
E) radiative energy.
B) chemical potential energy.
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Hydrostatic equilibrium refers to the balance between weight and pressure
a. True b. False Indicate whether the statement is true or false
Assume that Hubble's constant is 22 kilometers per second per million light-years. Then we would expect a galaxy 100 million light-years away to be moving (Assume the motion is due only to Hubble's law.)
A) away from us at 2,200 km/s B) away from us at 220 km/s C) toward us at 2,200 km/s D) away from us at 22,000 km/s
If the intensity of a sound is increased by a factor of 100, how is the decibel level changed? The new decibel level will be:
a. two units greater. b. double the old one. c. ten times greater. d. twenty units greater.
In a resonating pipe that is open at one end and closed at the other end, there
A) are displacement nodes at each end. B) are displacement antinodes at each end. C) is a displacement node at the open end and a displacement antinode at the closed end. D) is a displacement node at the closed end and a displacement antinode at the open end.