Newton used only the work of Kepler to discover his three laws of motion and the law of gravity
a. True
b. False
Indicate whether the statement is true or false
False
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The spacecraft Cassini went into orbit around
A) Uranus. B) Saturn. C) Jupiter. D) Pluto. E) Neptune.
A boat that contains a heavy anchor floats in a small lake. If the anchor is thrown overboard such that it rests upon the lake bottom, which of the following will happen?
(i) The level of the water in the lake will go down slightly. (ii) The level of the water in the lake will go up slightly. (iii) The level of the water in the lake will stay exactly the same. (iv) The waterline on the boat will go up (that is, the boat will sink slightly). (v) The waterline on the boat will go down (that is, the boat will rise slightly). (vi) The water line on the boat will stay the same.
1.(i) and (v) 2.(ii) and (iv) 3.(iii) and (vi) 4.(iii) and (v)A heat engine that converts all the heat taken in from a single temperature source to work would be in violation of what natural law? ________ (more than one word)
What will be an ideal response?
Temperature Scales: Which two temperature changes are equivalent?
A. 1 K = 1 F° B. 1 F° = 1 C° C. 1 C° = 1 K D. None of these