Which of the following characteristics of stars has the greatest range in values?
A) mass
B) radius
C) core temperature
D) surface temperature
E) luminosity
E
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A solenoid of length 5.0 cm has a cross sectional area of 1.0 cm2 and has 300 uniformly spaced turns. The solenoid is wrapped in 180 turns of insulated wire resulting in a mutual inductance of
A) 1.1 H. B) 1.4 × 10-2 H. C) 11 H. D) 1.4 × 10-4 H. E) 110 H.
Most star names, such as Aldebaran and Betelgeuse, are___ in origin
a. Latin b. Greek c. Arabic d. English e. Italian
We usually think of friction "opposing motion". Explain how friction assists the motion of a car
What will be an ideal response?
One of the discoveries made by the Voyager probes while near Jupiter was
A) Io has a featureless surface that never changes. B) a thin ring of dust around the equator. C) the absence of a magnetic field around the giant planet. D) that the Great Red Spot is uniform and featureless. E) each of the four large moons produces a strong magnetic field.