When operating on a 120-V circuit, an electric heater receives 1.30 × 103 W of power, a toaster receives 1.00 × 103 W, and an electric oven receives 1.54 × 103 W. If all three appliances are connected in parallel on a 120-V circuit and turned on, what is the total current drawn from an external source?
1.24.0 A
2.32.0 A
3.40.0 A
4.48.0 A
5.none of those answers
2
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The geography of Uranus's moon Miranda suggests it may have been broken apart into pieces by an impact and then drawn back together out of order by gravity.
Answer the following statement true (T) or false (F)
Which of the following are the units of a henry and a farad, respectively?
A. J ? s2/C2 and C2/J B. V ? s/A and V/C C. V/(A ? s) and C/V D. N ? m/A2 and 1/J E. None of the above
What is the weight of a 14.0 kg pumpkin in Newtons?
What will be an ideal response?
When NASA was communicating with astronauts on the Moon, the time from sending on the Earth to receiving on the Moon was 1.28 s. Find the distance from Earth to the Moon. (The speed of radio waves is 3.00 × 10^8 m/s.)
a. 240 000 km b. 384 000 km c. 480 000 km d. 768 000 km