Both the pressure and volume of a given sample of an ideal gas double. This means that its temperature in Kelvins must
A) double.
B) quadruple.
C) reduce to one-half its original value.
D) reduce to one-fourth its original value.
E) remain unchanged.
B
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Radio telescopes are important in astronomy because
a. they can detect cool hydrogen. b. they have high magnification. c. the can detect interstellar dust clouds. d. they are very inexpensive to build on tops of mountains. e. they don't need to be as large as optical telescopes to achieve the same resolving power.
The coefficient of linear expansion of copper is 17 × 10-6 K-1
A block of copper 30 cm wide, 45 cm long, and 10 cm thick is heated from 0°C to 100°C What is the change in the volume of the block? A) 2.3 × 10-5 m3 B) 4.6 × 10-5 m3 C) 5.2 × 10-5 m3 D) 6.9 × 10-5 m3 E) 13.8 × 10-5 m3
When studying light, a nanometer is a unit
used for a) resonance. b) frequency. c) wavelength. d) loudness.
A 1.5-kg mass attached to spring with a force constant of 20.0 N/m oscillates on a horizontal, frictionless track
At t= 0, the mass is released from rest at x= 10.0 cm. (That is, the spring is stretched by 10.00 cm.) (a) Determine the frequency of the oscillations. (b) Determine the maximum speed of the mass. Where does the maximum speed occur? (c) Determine the maximum acceleration of the mass. Where does the maximum acceleration occur? (d) Determine the total energy of the oscillating system. (e) Express the displacement as a function of time.