The force of attraction between Earth and any object located on its surface is generally referred to as the object’s
a) mass.
b) momentum.
c) inertia.
d) weight.
d
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When gas in a container expands to three times its volume at constant temperature, the gas pressure
A) is one third. B) is one ninth. C) triples. D) remains the same.
The quantity is known as
a. kinetic energy. b. potential energy. c. work. d. energy. e. power.
What is the total force on the bottom of a 2.0-m-diameter by 1.5-m-deep round wading pool due to the weight of the air and the weight of the water? (Note the pressure contribution from the atmosphere is 1.0 × 10^5 N/m2, the density of water is 1 000 kg/m3, and g = 9.8 m/s2.)
a. 5.1E+5 N b. 1.4E+6 N c. 2.1E+5 N d. 3.6E+5 N e. 2.1E+5 N
An object is moving with constant non-zero acceleration on the +x axis. The position versus time graph of this object is
A) a horizontal straight line. B) a vertical straight line. C) a straight line making an angle with the time axis. D) a parabolic curve. E) a hyperbolic curve.