A balloon fully inflated and sealed at 10 metres/33 feet, would probably __________ during ascent to the surface.
a. shrink (become smaller)
b. burst
Ans: b. burst
Physics & Space Science
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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
The force that pulls an upward going ball back to Earth and keeps the Moon in its orbit is called ________.
A. escape speed B. gravity C. pressure D. inertia
Physics & Space Science
A plot of land contains 5.8 acres. How many square meters does it contain? [1 acre = 43,560 ft2]
A) 2.3 × 104 m2 B) 7.1 × 103 m2 C) 7.0 × 104 m2 D) 5.0 × 104 m2
Physics & Space Science
A type B star is bluer than a type G star
Indicate whether the statement is true or false
Physics & Space Science