The distances to other stars are best measured in ________
Fill in the blank(s) with correct word
light-years
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Which best describes the relationship between two systems in thermal equilibrium?
a. no net energy is exchanged b. volumes are equal c. masses are equal d. zero velocity
The absolute magnitude of a star is the apparent magnitude it would have if it were 10 pc from Earth
a. True b. False Indicate whether the statement is true or false
The characteristic that distinguishes fermions from bosons is
A) their mass. B) their electric charge. C) their spin. D) their size. E) their speed of travel.
Three identical resistors are connected in series to a battery. If the current of 12 A flows from the battery, how much current flows through any one of the resistors?
A) 12 A B) 4 A C) 36 A D) 24 A E) zero