Best Answer: <span>Power = Current * Voltage
Therefore (B) is correct.
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Explanation:
sorry I'm late
I'm answering cause I felt bad abt the fact that noone answered u. Have a great morning or night!
Answer:
20,000, though, I'm not completely sure.
Explanation:
"Sound is generated along the length of the lightning channel as the atmosphere is heated by the electrical discharge to the order of 20,000 degrees C (3 times the temperature of the surface of the sun)."
Answer: 1.65 x 10^-5 m
Explanation:
Using the equation
Delta L = (1/Y x F/A ) Lo
Y = 1.6 x 10^10 N/m^2
Lo = 0.31 m
A= pi x r^2 = pi x (0.0178m)^2 = 9.9 x 10^ - 4 m^2
Ftot = 3 x w = 3 x 55 x 9.8 = 1617N
Fleg = Ftot/2 = 1617/2 = 808.5N
Delta L = 1/1.6 x 10^10 x 808.5/9.9 x 10^-4 x 0.31
= 0.65 x 10^-10 x 81.7 x 10^4 x 0.31 = 1.65 x 10^-5 m
The fire leg is stretched by 1.65 x 10^-5 m
