An ideal diatomic gas has a molar specific heat at constant pressure Cp of:
A. R
B. 3R/2
C. 5R/2
D. 7R/2
E. 9R/2
Answer: D. 7R/2
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Which sugar is found in greater than normal amounts in the blood of a diabetic?
a. Sucrose b. Lactose c. Glucose d. Fructose
A person runs up a long flight of stairs in 10 seconds. If the person's weight is 600 N and the vertical height of the stairs is 20 meters, the person's power output is
a. 0 b. 3 W c. 30 W d. 1,200 W e. 12,000 W
Simple Pendulum: A 34-kg child on an 18-kg swing set swings back and forth through small angles. If the length of the very light supporting cables for the swing is 4.9 m, how long does it take for each complete back-and-forth swing? Assume that the child and swing set are very small compared to the length of the cables.
A. 4.4 s B. 4.8 s C. 5.3 s D. 5.7 s
The rate of cratering
A) has remained constant over the last 4.6 billion years. B) has recently increased with more collisions in the asteroid belt. C) fluctuates over time, with massive bodies occasionally coming in from the Oort Cloud. D) shows that large asteroid impacts are more common now than in the past. E) shows that most interplanetary debris was swept up soon after the formation of the solar system.