The colors you see with a prism result because of __________
Fill in the blank(s) with correct word
dispersion
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T Tauri stars are never seen in old star clusters.
Answer the following statement true (T) or false (F)
The farthest bright galaxies that modern telescopes are capable of seeing are up to
A) 10 billion light years away. B) 10 million light years away. C) 1 trillion light years away. D) 1 million light years away. E) 1 billion light years away.
Ten meter long steel railroad rails are laid end to end, with no space between, on a hot day when the temperature is 115.°F. Six months later the temperature has dropped to -2.°F
How much space now exists between each rail? [ linear expansion coef. for steel is 12. × 10-6 C°-1]
A 1.00-kg duck is flying overhead at 1.50 m/s when a hunter fires straight up. The 0.0100-kg bullet is moving 200 m/s when it hits the duck and stays lodged in the duck's body. What is the speed of the duck and bullet immediately after the hit?
a. 1.49 m/s c. 2.48 m/s b. 1.80 m/s d. 2.50 m/s