The difference between the highest and lowest voltage of a household "120 V emf" is
A. 120 V.
B. 170 V.
C. 240 V.
D. 340 V.
E. 377 V.
D. 340 V.
Physics & Space Science
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Computer 3.24 M + .532 M to the correct number of Significant figures
A. 3.7 m B. 3.77 M C. 3.772 M D. 3.7720 M
Physics & Space Science
During each cycle of operation, a refrigerator absorbs 230 J of heat from the freezer and expels 356 J of heat to the room. How much work input is required in each cycle?
A) 712 J B) 586 J C) 460 J D) 310 J E) 126 J
Physics & Space Science
If electricity costs 7.06ยข/kW?h, how much would it cost you to run a 120W stereo system 4 hours per day for 4 weeks
A) $0.14 B) $0.95 C) $2.66 D) $1.62
Physics & Space Science
If an object of mass 8 kg has an acceleration of 5 m/s2, what is the unbalanced force acting on it?
a. 40 N b. 1.6 N c. 0.63 N d. 13 N e. cannot be determined
Physics & Space Science