In PVC, if the chlorine atoms are all on the same side of the LCM, this is a(n) _____________arrangement.
Fill in the blank(s) with the appropriate word(s).
isotactic
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Which of the following best describes why radio telescopes are generally much larger in size than telescopes designed to collect visible light?
A) Getting an image of the same angular resolution requires a much larger telescope for radio waves than for visible light. B) Radio telescopes are designed to collect sound rather than light. C) It is because radio telescopes are used in the daytime and visible light telescopes are used at night. D) Objects that emit radio waves are always much larger than objects that emit visible light, and therefore require larger telescopes.
A sonic boom cannot be produced by
A) an aircraft flying slower than the speed of sound. B) a whip. C) a speeding bullet. D) all of the above
A 6.0-kg block slides along a horizontal surface. If µk = 0.20 for the block and surface, at what rate is the friction force changing the mechanical energy of the block at an instant when its speed is 4.0 m/s?
a. ?59 W b. ?47 W c. ?71 W d. ?82 W e. +71 W
Two parallel wires each carrying a current in opposite directions will ________ one another.
Fill in the blank(s) with the appropriate word(s).