A cart is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.4 m/s2 . What is the magnitude of the cart's displacement during the first 5.0 s of its motion?
a. 35 m
b. 85 m
c. 55 m
d. 11 m
e. 17 m
c
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A 100 gram glass container contains 250 grams of water at 
150 grams of water at 
is added to the aluminum container. What is the final temperature of the water and the aluminum? (specific heat of water 
specific heat of aluminum 
a. 37 
B. 31
C. 23
D. 17
E. 12
Translational motion is characterized by
A) motion that carries a molecule from one place to another. B) the motion used in measuring temperature. C) both of these D) neither of these
A heat engine absorbs 64 kcal of heat each cycle and exhausts 42 kcal
(a) Calculate the efficiency each cycle. (b) Calculate the work done each cycle.
A refrigerator has a coefficient of performance of 4 . If the refrigerator absorbs 30 cal of heat from the cold reservoir in each cycle, the heat expelled (in cal) into the heat reservoir is
a. 40.5 b. 37.5 c. 36.5 d. 34.5 e. 22.5