During each cycle, the compressor in a certain ideal Carnot refrigerator performs 480 J of work to remove 150 J of heat from the interior of the refrigerator. How much heat do the coils behind the refrigerator discharge into the kitchen each cycle?
A) 110 J
B) 150 J
C) 330 J
D) 480 J
E) 630 J
E
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A ball is falling toward the ground. Which of the following statements are false?
a) The force that the ball exerts on the Earth is equal in magnitude to the force that the Earth exerts on the ball. b) The ball undergoes the same acceleration as Earth. c) The magnitude of the force the Earth exerts on the ball is greater than the magnitude of the force the ball exerts on the Earth.
1. Statements a and b are false. 2. Statements a, b, and c are all false. 3. Statements a and c are false. 4. Statements b and c are false.What conditions must be met for complete destructive interference between two waves?
If the absolute value of the magnification is larger than one, then the image is
A) larger than the object. B) the same size as the object. C) smaller than the object.
Amir drives his ATV from coordinates (5.0 km, 25°) directly to (25.0 km, 45°) in 45 minutes. What is the ATV's speed?
a. 0.5 km/h b. 20.4 km/h c. 27.2 km/h d. 34.0 km/h