An inertial frame is one moving with ________ (two words) with respect to the "fixed stars", i.e., with respect to the average position of all matter in the universe.
What will be an ideal response?
constant velocity
uniform velocity
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The Moon's huge Mare Orientale basin has a twin on Mercury named:
A) Galileo. B) Caloris. C) Mare Marineris. D) the weird terrain. E) Valhalla.
A certain amount of a monatomic gas is maintained at constant volume as it is cooled by 50 K. This feat is accomplished by removing 400 J of energy from the gas. How much work is done by the gas?
A) 200 J B) -200 J C) 400 J D) zero E) -400 J
In a steam engine, steam at 140°C in a turbine does work on an external system, and the steam leaves the turbine at 100°C. The efficiency of the steam engine is 5%. The relevant physical principle is the __________ law of thermodynamics
Fill in the blank(s) with correct word
A charged particle is observed traveling in a circular path of radius R in a uniform magnetic field. If the particle were traveling twice as fast, the radius of the circular path would be
A) R/2. B) 8R. C) R/4. D) 4R. E) 2R.