If the specific heat capacity of water were lower than it is, a nice hot bath would be a
A) shorter experience.
B) longer experience.
C) same regardless of water's specific heat capacity.
Answer: A
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An object of mass 4.0 kg starts at rest from the top of a rough inclined plane of height 10 m as shown in the figure
If the speed of the object at the bottom of the inclined plane is 10 m/s, how much work does friction do on this object as it slides down the incline? What will be an ideal response?
Which of the following best describes the meaning of the uncertainty principle as applied to an electron bound in an atom?
A) The electron follows a precise path around the nucleus, but it is impossible for us to actually measure this path. B) The electron is actually a precisely defined sphere surrounding the nucleus rather than a point, which explains why we cannot locate it at a single position. C) The electron always has a clearly defined position and velocity, but the laws of nature are set up so that, if we measure one, the other becomes instantly hidden from view. D) The electron does not really exist, and what we perceive as an electron is really just an ill-defined energy field. E) The electron is both a particle and a wave and is therefore "smeared out" around the nucleus.
A rock attached to a string swings in a vertical circle. Which free-body diagram could correctly describe the force(s) on the rock when it is at the lowest point, where
is the normal force, 
) is weight, and
is tension?
a.
b.
c.
d.
e.
A model for combining the electromagnetic, weak and strong nuclear interactions into a single basic force is a(n)
a. electroweak theory b. GUT c. quark theory d. generalized theory of relativity e. theory of strangeness