The escape velocity needed for an atom in the atmosphere of a planet to escape the gravitational pull of the planet is larger if:
A. the temperature of the gas in the atmosphere is higher
B. the mass of the atom is smaller
C. the radius of the planet is larger
D. the planet is farther from the Sun
E. the mass of the planet is larger
Ans: E. the mass of the planet is larger
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In the two-slit experiment, monochromatic light of wavelength 600 nm passes through a pair of slits separated by 2.20 x 10-5 m
(a) What is the angle corresponding to the first bright fringe? (b) What is the angle corresponding to the second dark fringe?
What is the energy of a 633 nm photon?
A) 0.32 eV B) 3.14 eV C) 5.1 eV D) 1.96 eV E) 0.51 eV
While a rock thrown upward at 50 degrees to the horizontal rises, neglecting air drag, its vertical component of velocity
A) increases. B) remains unchanged. C) decreases.
When an electron changes from n = 3 to n = 2, a(n) ______________ is given off
Fill in the blank(s) with correct word