Consider an orbit where rc = 1 AU and b = 2 AU. What kind of orbit is this?
A. Circular
B. Elliptical
C. Parabolic
D. Hyperbolic
C. Parabolic
Physics & Space Science
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When you rapidly stir raw eggs with an eggbeater, the temperature of the eggs
A) increases. B) decreases. C) remain unchanged. D) none of the above
Physics & Space Science
The Otto cycle has how many strokes per cycle during which the volume decreases?
A) 8 B) 4 C) 2 D) 1 E) 3
Physics & Space Science
The energy of sound in air eventually becomes
A) increased internal energy in the air. B) weaker and weaker until it disappears. C) cancelled by destructive interference. D) all of the above E) none of the above
Physics & Space Science
When using an eyepiece of focal length f, the Yerkes refracting telescope gives a magnification of 800 . What focal length eyepiece would yield a magnification of 500?
a. (8/5)2f b. (5/8)f c. (8/5)f d. (5/8)2f
Physics & Space Science