Heat flow occurs between two bodies in thermal contact when they differ in what property?
a. mass
b. specific heat
c. density
d. temperature
d
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William and Caroline Herschel attempted to make a map of the Milky Way galaxy by counting the number of stars visible in different directions
a. True b. False Indicate whether the statement is true or false
When the relative humidity is 100%, the air temperature is equal to
a. the lapse rate. b. 100°F. c. the dew point temperature. d. none of these.
A golf ball hits a wall and bounces back at 3/4 the original speed. What part of the original kinetic energy of the ball did it lose in the collision?
a. 1/4 c. 7/16 b. 3/8 d. 9/16
Graphical Analysis: If the velocity versus time graph of an object is a horizontal line, the object is
A. moving with zero acceleration. B. moving with constant non-zero acceleration. C. at rest. D. moving with increasing speed.