How many quark colors are there?
a. 1 b. 3
c. 6 d. none of the above
b
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If a thermometer measures the temperature of two objects as being equal, you can conclude that the objects will be in thermal equilibrium if they are brought into thermal contact
Indicate whether the statement is true or false
Hydrogen atoms can emit four spectral lines with visible colors from red to violet. These four visible lines emitted by hydrogen atoms are produced by electrons
A) that start in the n = 2 level. B) that end up in the n = 2 level. C) that end up in the n = 3 level. D) that end up in the ground state. E) that start in the ground state.
A 400-W computer (including its monitor) is turned on for 8.0 hours per day. If electricity costs 10ยข per kWh, how much does it cost to run the computer annually for a 365-day year?
A) $120 B) $1200 C) $15 D) $150
In a 3d subshell, what are the possible values for the magnetic quantum number?
A. 3 B. 3, -3 C. 3, 2, 1, 0 D. 2, 1, 0, -1, -2 E. 2, -2