If an object moves with constant velocity,
a. its speed is constant.
b. its direction is constant.
c. its average speed is constant.
d. its distance traveled per unit time is constant.
e. all of these
e
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Which of the following elements is the physical basis of life on Earth?
A) Nitrogen B) Oxygen C) Carbon D) Hydrogen
If the inductance and the capacitance both double in an LRC series circuit, the resonant frequency of that circuit will
A) decrease to one-half its original value. B) decrease to one-fourth its original value. C) decrease to one-eighth its original value. D) increase to twice its original value. E) increase to four times its original value.
A neutral hollow spherical conducting shell of inner radius 1.00 cm and outer radius 3.00 cm has a +2.00-µC point charge placed at its center. Find the surface charge density
(a) on the inner surface of the shell. (b) on the outer surface of the shell.
The pollutant primarily responsible for acid rain is
a. NO2. b. CO2. c. O3. d. SO2.