Thermal energy is measured in
A) calories.
B) Calories.
C) joules.
D) any or all of the above for special cases
Answer: D
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A particle with a mass of 3.0 kg is accelerated to a speed of 0.80. The mass of this particle is now:
A. Greater than 3.0 kg B. Less than 3.0 kg C. Still 3.0 kg
The gravitational red shift is caused by
A) gravitational lensing. B) rotating black holes. C) time dilation. D) Rayleigh scattering in the atmosphere.
The first laboratory discovery of nuclear fission occurred
A) in Marie Curie's lab in the early 1900s. B) in London in 1930. C) in Germany in 1938. D) in New Mexico in 1944 E) in the United States in 1940.
The Heisenberg uncertainty principle places restriction on the precision of simultaneously measuring both position and momentum. This principle can also be applied to the simultaneous measurement of two other variables, which are
a. force and color. b. energy and time interval. c. mass and charge. d. torque and frequency.