What is the predominant component of Jupiter's atmosphere?
A) hydrogen
B) helium
C) methane
D) ammonia
Answer: A
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Why did the Moon's internal heat escape more rapidly than Earth's?
What will be an ideal response?
A curved portion of highway has a radius of curvature of 65 m. As a highway engineer, you want to bank this curve at the proper angle for a steady speed of 22 m/s
(a) What banking angle should you specify for this curve? (b) At the proper banking angle, what normal force and what friction force does the highway exert on a 750-kg car going around the curve at the proper speed?
If VA ? VB = 50 V, how much energy is stored in the 36-?F capacitor?
a. 50 mJ
b. 28 mJ
c. 13 mJ
d. 8.9 mJ
e. 17 mJ
Suppose we know a particle’s four-momentum pt and px components. If we draw the particle’s four-momentum arrow on an energy–momentum diagram, we can use a hyperbola to determine
A. The particle’s energy.
B. The particle’s speed.
C. The particle’s x-velocity.
D. The particle’s momentum magnitude 
.
E. The particle’s mass.
F. The scaling on the t axis.
T. Something else (specify).