Planet Z-34 has a mass equal to one-third that of Earth and a radius equal to one-third that of Earth
With g representing, as usual, the acceleration due to gravity on the surface of Earth, the acceleration due to gravity on the surface of Z-34 is A)
g/3.
B)
3 g.
C)
6 g.
D)
g/9.
E)
9 g.
B
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For a star of 10 solar masses, its main sequence life span will be:
A) ten times longer than our Sun's. B) about the same as the Sun's. C) only a tenth of the Sun's. D) about a hundred times less than the Sun's. E) only 1/1000th of the Sun.
In the Southern Hemisphere, the Coriolis force causes all free-moving objects in the air to curve
A) to the left of their intended path. B) to the right of their intended path. C) counterclockwise to their intended path. D) clockwise to their intended path.
A photocathode has a work function of 2.4 eV. The photocathode is illuminated with monochromatic radiation whose photon energy is 3.5 eV. The wavelength of the illuminating radiation is closest to:
A) 350 nm B) 330 nm C) 300 nm D) 380 nm E) 410 nm
Faraday's Law: A flat circular loop having one turn and radius 5.0 cm is positioned with its plane perpendicular to a uniform 0.60-T magnetic field. The area of the loop is suddenly reduced to essentially zero in 0.50 ms. What emf is induced in the loop?
Fill in the blank(s) with the appropriate word(s).