CO observations of the galaxy reveal
a. the location of dense neutral hydrogen clouds.
b. the location of population II stars.
c. the location of population I stars.
d. the location of the galactic corona.
e. the location of giant molecular clouds.
E
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What is the entropy change in the boiling process?
A. 12,120 J/K B. 8,566 J/K C. 6,750 J/K D. 5,844 J/K
When a car comes to a stop its kinetic energy is converted to internal energy in its brakes, heating them up
a. True b. False Indicate whether the statement is true or false
If the control volume equation for a flow is the equation below, the flow may be:
(A) Uniform flow into and from a fixed volume
(B) Steady, uniform flow in a pipe
(C) Uniform flow in a conduit
(D) Steady, one-dimensional flow in a channel
Assuming no change in temperature, as a freely expanding helium-filled balloon rises in the atmosphere, the buoyant force acting on it
A) increases. B) decreases. C) remains nearly the same.