Two areas in which fusion is the source of energy are __________ and __________
Fill in the blank(s) with correct word
stars, hydrogen bombs, tokamak reactors
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The two metallic strips that constitute some thermostats must differ in:
A. length B. thickness C. mass D. rate at which they conduct heat E. coefficient of linear expansion
An object moving on the x axis with a constant acceleration increases its x coordinate by 80 m in a time of 5.0 s and has a velocity of +20 m/s at the end of this time. Determine the acceleration of the object during this motion
a. -1.6 m/s2 b. +6.4 m/s2 c. +1.6 m/s2 d. -2.0 m/s2 e. -6.4 m/s2
Steel wool wetted with vinegar is sealed within a balloon inflated with air. After several hours, what happens to the volume of the balloon?
A) The balloon inflates. B) The balloon deflates. C) The balloon dissolves. D) Nothing because the vinegar is acting on the steel wool, not upon the balloon.
Compared to the terrestrial planets, Jovian planets
a. have a higher density. b. have a smaller number of moons. c. have a much larger diameters. d. are much hotter.