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swat32
4 years ago
15

A (11.4 A) ohm device is connected to a 115 V outlet. If the cost of the electrical energy is $0.16/kWh, determine the cost of r

unning this device for (36.0 B) hours. Round your answer in dollars ($) with 2 decimal places.
Physics
1 answer:
Scrat [10]4 years ago
4 0

Answer:

$6.68

Explanation:

The current running through the device would be its outlet voltage divided by the resistance:

I = U/R = 115 / 11.4 = 10.09 A

The power generated by this device is the product of its current and voltage

P = IU = 10.09 * 115 = 1160 W or 1.16 kW

If running this device for 36 hours then the total energy it would consume is

E = Pt = 1.16 * 36 = 41.76 kWh

Therefore the total cost of electrical energy is

C = Ec = 41.76*0.16 = $6.68

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Answer:

5.843 m

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applying motion equation

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3 years ago
A charge of -8.1 µC is traveling at a speed of 7.2 106 m/s in a region of space where there is a magnetic field. The angle betwe
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Answer:

B = 1.03 \times 10^{-4} T

Explanation:

As we know that magnetic force on a moving charge is given by the formula

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