He discovered what we now call Newton's first law of motion
A) Copernicus B) Galileo C) Ptolemy D) Tycho Brahe E) Kepler
B
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Develop a reasonable layout of nodes and control volumes for the geometry shown in the sketch below. Provide a scale drawing showing the problem geometry overlaid with the nodes and control volumes. Identify each type of control volume used.
GIVEN
• Rectangular problem geometry with corners removed
FIND
(a) Reasonable layout of nodes and control volumes.
(b) Identify each type of control volume.
SKETCH
Many Earth-based telescopes are larger than the Hubble Space Telescope, so what justifies the great expense of a "space-based" instrument?
What will be an ideal response?
A 3.0-kg and a 5.0-kg box rest side-by-side on a smooth, level floor. A horizontal force of 32 N is applied to the 3.0-kg box pushing it against the 5.0-kg box, and, as a result, both boxes slide along the floor
How large is the contact force between the two boxes? A) 12 N B) 20 N C) 24 N D) 32 N E) 0 N
The most energetic photons are
A) X-rays. B) radio. C) gamma rays. D) visible. E) infrared.