A 0.5-kg blob of clay moving at 2.0 m/s slams into a 4.0-kg blob of clay at rest. The speed of the two blobs stuck together after colliding is about
A) 1.1 m/s.
B) 1.5 m/s.
C) 2.5 m/s.
D) none of the above
Answer: D
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If we imagine launching an apple into a circular orbit about Earth and ignore the effects of air resistance, we know that the apple will experience
A. a constant velocity. B. no net force. C. a force due to its inertia. D. a centripetal force due to gravity.
Astronomers refer to elements heavier than helium as _______________
Fill in the blank(s) with correct word
Which is another term for a raster image?
A. pixelated B. zoomed C. bitmap D. compressed
If 2.0 g of water at 0.00°C is to be vaporized, how much heat must be added to it? The specific heat of water is 1.0 cal/g?K, its heat of fusion is 80 cal/g, and its heat of vaporization is 539 cal/g
A) 1100 kcal B) 1200 cal C) 1500 cal D) 1100 cal E) 1300 cal