Why do we see essentially the same face of the Moon at all times?
A) because the other face points toward us only at new moon, when we can't see the Moon
B) because the Moon does not rotate
C) because the Moon's rotational and orbital periods are equal
D) because the Sun illuminates only one half of the Moon at a time
E) because the Moon has a nearly circular orbit around Earth
C) because the Moon's rotational and orbital periods are equal
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Rank them from fastest to slowest in how quickly each warms up: (a) steel, 450 J/kg??C ; (b) aluminum, 910 J/kg??C ; (c) copper, 390 J/kg??C .Rank from fastest to slowest. To rank items as equivalent, overlap them.
The symbols 
and 
are used to represent, respectively, the charge density per unit
A. length, volume, and area. B. volume, length, and area. C. area, volume, and length. D. volume, area, and length. E. area, length, and volume.
Explain why it would be better to obtain stellar parallax for stars if we could observe from the planet Mars instead of the Earth
What will be an ideal response?
“What is the physical significance of the statement that the temperature of each node is just the average of its neighbors if there is no heat generation”
What will be an ideal response?