Future space stations will create an artificial gravity by rotating. Consider a cylindrical space station 390 m diameter rotating about its central axis. Astronauts walk on the inside surface of the space station
What rotation period will provide "normal" gravity? A) 28 s
B) 40 s
C) 6.3 s
D) 4.4 s
A
Physics & Space Science
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The gravitational field around close binary stars is defined by _______________ lobes
Fill in the blank(s) with correct word
Physics & Space Science
The convex secondary mirror in this design focuses light down through a hole cut in the concave primary mirror
A) refractor B) prime focus reflector C) Newtonian reflector D) Cassegrain reflector E) interferometer
Physics & Space Science
Cart A with momentum p (in magnitude) collides with cart B at rest and rebounds. What can you say about the momentum of cart B after the collision?
Evaporation and precipitation are in balance over the
A) polar ice caps. B) continents. C) oceans. D) equator.
Physics & Space Science