The lunar surface cools after the sun sets. This is an example of
a. heat conduction
b. heat convection
c. heat radiation
d. thermal expansion
e. none of the above
C
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Suppose you know the speed of a spacecraft in kilometers per second. How would you calculate its speed in kilometers per hour?
A) Multiply by 60 and then multiply by 60 again. B) Divide by 60 and then divide by 60 again. C) Multiply by 24. D) Divide by 24.
Newton's second law is valid only in inertial reference frames
Indicate whether the statement is true or false
An atom has completely filled inner shells and a single valence electron in an excited p state. The filled inner shells have an orbital momentum equal to zero
What is the magnitude of the orbital angular momentum L of the atom? A) 1.4? B) 2.0? C) 1.7? D) 1.0? E) 1.2?
The equivalent capacitance of the circuit shown below is
a.
0.2 C.
b.
0.4 C.
c.
1 C.
d.
4 C.
e.
5 C.