Any element heavier than helium is collectively referred to as a _______________
Fill in the blank(s) with correct word
metal
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Butadiene rubber has a very low tensile strength; therefore, it is primarily used as a(n) _________.
Fill in the blank(s) with the appropriate word(s).
In the first law of thermodynamics
the variables Q and W stand for
A. the heat flow out of the system and the work done on the system. B. the heat flow out of the system and the work done by the system. C. the heat flow into the system and the work done by the system. D. the heat flow into the system and the work done on the system.
Kinetic Energy: An object hits a wall and bounces back with half of its original speed. What is the ratio of the final kinetic energy to the initial kinetic energy of the object?
A. 1/2 B. 1/4 C. 1/8 D. 1/16
Displacement: Suppose that an object travels from one point in space to another. Make a comparison between the magnitude of the displacement and the distance traveled by this object.
A. The displacement is either greater than or equal to the distance traveled. B. The displacement is always equal to the distance traveled. C. The displacement is either less than or equal to the distance traveled. D. The displacement can be either greater than, smaller than, or equal to the distance traveled.