The change in entropy of a mass m of a solid substance which has a latent heat of fusion LF and melts at a temperature T is
a. LFT/m
b. mLF ln(T)
c. mLFT
d. mLF/T
e. LF/mT
d
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The velocity at the midway point of a ball able to reach a height y when thrown with velocity vi at the origin is:
A.
B.
C.
D.
E.
Exhibit 4-2Newton approximated motion in a circle as a series of linear motions, as in the polygon below.
Assume that the particle moves at constant speed vA from A to B, and at constant speed vB from B to C.Use this exhibit to answer the following question(s).
Refer to Exhibit 4-2. The direction of the acceleration, 
, at point B, is shown by the arrow in
A.
B.
C.
D.
E.
What happens in the radiative zone?
What will be an ideal response?
At an instant when a 4.0-kg object has an acceleration equal to 
m/s2, one of the two forces acting on the object is known to be 
N. Determine the magnitude of the other force acting on the object.
A. 2.0 N B. 13 N C. 18 N D. 1.7 N E. 20 N