A solenoid of length 0.700 m having a circular cross-section of radius 5.00 cm stores 6.00 µJ of energy when a 0.400-A current runs through it. What is the winding density of the solenoid? (?0 = 4? × 10-7 T • m/A)
A) 327 turns/m
B) 1080 turns/m
C) 865 turns/m
D) 472 turns/m
E) 104 turns/m
E
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During which step in cosmic evolution were the chemical bases for life created?
A) particulate evolution B) stellar evolution C) chemical evolution D) biological evolution E) cultural evolution
A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s2
The car comes to a stop in a distance of 34.0 m. What was the car's speed when it had traveled 17.0 m from the point where the brakes were applied? A) 10.9 m/s B) 14.5 m/s C) 10.7 m/s D) 21.0 m/s E) 15.3 m/s
Which of the following planets cannot be in opposition?
a. Mercury b. Jupiter c. Saturn d. Mars
If a star appears to move back and forth relative to other stars over a six-month period, this motion is due to the star's:
A) transverse motion. B) radial motion. C) parallax shift. D) Doppler shift. E) true space motion.