A polymer with a high % of crystallinity has a _____________hardness than does the same polymer that is less crystalline.
Fill in the blank(s) with the appropriate word(s).
higher
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A 60.0-kg person rides in an elevator while standing on a scale. The scale reads 400 N. The acceleration of the elevator is closest to
A) 3.13 m/s2 downward. B) 6.67 m/s2 downward. C) zero. D) 9.80 m/s2 downward. E) 6.67 m/s2 upward.
Double-Slit Interference: Two thin slits are 6.00 ?m apart. Monochromatic coherent light falls on these slits, and produces a fifth-order bright interference fringe at an angle of 32.3° away from the centerline. What is the wavelength of the light?
A. 164 nm B. 416 nm C. 614 nm D. 641 nm
The nucleus, or main solid body, of a comet has a typical size of:
A) a few centimeters. B) a few meters. C) a few kilometers. D) a few hundred kilometers. E) a few thousand kilometers.
An electron-volt is the energy required to move an electron through a potential difference of one volt. Because of the connection between mass and energy, an electron-volt can also be regarded as a unit of mass
What is the equivalent to an electron-volt in kilograms? The charge on an electron is 1.602 × 10-19 C.