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

Physics & Space Science

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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

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When an electron changes from n = 3 to n = 2, a(n) ______________ is given off

Fill in the blank(s) with correct word

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