An ideal Carnot thermodynamic engine operates between and What is its efficiency?
A) 0.38
B) 0.62
C) 0.61
D) 1.61
A
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A satellite of mass M takes time T to orbit a planet. If the satellite had twice as much mass, the time for it to orbit the planet at the same altitude would be
A) 4T. B) 2T. C) T. D) T/2. E) T/4.
A flat coil of wire consisting of 20 turns, each with an area of 50 cm2, is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2.0 T to 6.0 T in 2.0 s. If the coil has a total resistance of 0.40 ?, what is the magnitude of the induced current?
a. 0.70 A b. 0.60 A c. 0.50 A d. 0.80 A e. 0.20 A
In a double-slit experiment, the slit separation is 2.0 mm, and two wavelengths, 750 nm and 900 nm, illuminate the slits simultaneously. A screen is placed 2.0 m from the slits
At what distance from the central maximum on the screen will a bright fringe from one pattern first coincide with a bright fringe from the other? A) 1.5 mm B) 6.0 mm C) 9.0 mm D) 4.5 mm E) 3.0 mm
The rotation curve of the galaxy provides evidence for the existence of the ____________________ which extends beyond the halo of the galaxy
Fill in the blank(s) with correct word