During each cycle, the compressor in a certain ideal Carnot refrigerator performs 480 J of work to remove 150 J of thermal energy from the interior of the refrigerator
How much thermal energy 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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Shell Radius: If a hydrogen atom originally in a state with principal quantum number n is excited to state n' = 2n, then
A. its radius and binding energy will double. B. its radius will quadruple and the binding energy will double. C. its radius will double and the binding energy will quadruple. D. its radius will quadruple and the binding energy will be reduced by a factor of four. E. its radius and binding energy will quadruple.
If the kinetic energy of a ball is doubled, then the momentum is
A. 0.50 times larger. B. 0.71 times larger. C. 1.00 times larger. D. 1.41 times larger. E. 1.50 times larger.
A point charge of +3.0 mC is located at the origin of a coordinate system and a second point charge of -9.0 mC is at x = 1.00 m. What is the electric potential at the x = 0.50 m point? (ke = 8.99 × 10^9 N×m2/C2)
a. -5.4 × 10^4 V c. 16 × 10^4 V b. 11 × 10^4 V d. -11 × 10^4 V
What is the most common depositional feature created by the work of the oceans?
What will be an ideal response?