The energy released when an atom takes an electron is called
a. internal energy
b. dissociation energy
c. binding energy
d. electron affinity
e. ionization energy
d
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We are at ________ in January, when we are closest to the Sun in our elliptical orbit
Fill in the blank(s) with correct word
When a liquid boils and changes to a gas, it is said to have undergone a change of ________
Fill in the blank(s) with correct word
A rocket of total mass M and with burnout mass 0.20M attains a speed of 3 400 m/s after starting from rest in deep space. What is the exhaust velocity of the rocket?
a. 6.8E+2 m/s b. 2.1E+3 m/s c. 1.7E+4 m/s d. 2.2E+3 m/s e. 1.1E+3 m/s
Which one of the following is not true of neutrinos?
a. They have no charge. b. They have no spin. c. One type of neutrino may change into another type of neutrino. d. They are leptons. e. They do not take part in strong nuclear interactions.