A large solar furnace reflects solar radiation from a parabolic dish to a collector. The dish and collector are very long and have a configuration shown. Determine the shape factor, or view factor, from the dish to the collector.
Physics & Space Science
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When is the north polar axis tilted most toward the Sun?
What will be an ideal response?
Physics & Space Science
All minerals exhibit cleavage.
a. true b. false
Physics & Space Science
Jennifer hits a stationary 200. gram ball and it leaves the racket at 40. m/s. If time lapse photography shows that the ball was in contact with the racket for 40. ms:
(a) What average force was exerted on the racket? (b) What is the ratio of this force to the weight of the ball?
Physics & Space Science
A nuclear fission power plant has an actual efficiency of 39%. If 0.25 MW of power are produced by the nuclear fission, how much electric power does the power plant output?
A) 0.098 MW B) 9.8 MW C) 35 MW D) 0.35 MW
Physics & Space Science