The solubility parameter of a polymer is related to the energy of _____________for the polymer.
Fill in the blank(s) with the appropriate word(s).
vaporization
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Albedo equals 0 for a perfectly black object
Indicate whether the statement is true or false
Saturn’s average density is less than water’s. Suppose Saturn were placed on a much larger planet made entirely of water. What would happen?
a. It would float. b. It would sink to the center of the water planet. c. It would be spread out due to the rotation of the water planet. d. It would merge into the water planet; denser materials sinking toward the core and lighter materials forming part of the atmosphere. e. There would be a devastating impact and Saturn would be torn apart to form a giant ring system around the water planet.
Two spectral lines in a spectrum have frequencies of 2.0 x 1014 Hz and 4.6 x 1014 Hz. A higher-frequency line in the same spectrum likely has a frequency of
A) 2.6 x 1014 Hz. B) 6.6 x 1014 Hz. C) 13.2 x 1014 Hz. D) none of the above
A 20-g bullet moving at 1000 m/s is fired through a one-kg block of wood emerging at a speed of 200 m/s. If the block had been originally at rest and is free to move, what is its resulting speed?
a. 800 m/s c. 16 m/s b. 80 m/s d. 8 m/s