janellylancon623
19.03.2020 •
Mathematics
) A plane traveled 1400 miles to Cleveland and back. The trip there was with the wind. It took 14
hours. The trip back was into the wind. The trip back took 28 hours. Find the speed of the plane in
still air and the speed of the wind.
A) plane: 73 mph, wind: 10 mph B) plane: 36 mph, wind: 30 mph
C) plane: 75 mph, wind: 25 mph D) plane: 64 mph, wind: 31 mph
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Ответ:
Here's what I think I know:
1) the Voltage and the Resistance
2) Watts = Amps x Volts
so: 6 watts = A x 12, A = 0.5
Volts = Amps x Resistance
12 = 0.5 x R
R = 24 ohms
3) From step 2, A = 0.5 amps
4) since this is a series circuit, Re = Rh + 24
Step-by-step explanation: