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In Business / College | 2025-07-04

An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

Asked by gpymgwkky4

Answer (2)

The current of 15.0 A for 30 seconds delivers a total charge of 450.0 C. This charge corresponds to approximately 2.81 x 10^21 electrons flowing through the device. Therefore, around 2.81 trillion trillion electrons pass through in that time period.
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Answered by Anonymous | 2025-07-05

To determine the motor company's profit on the refurbished motor, we'll need to account for several costs and revenues involved in the process. Here's a step-by-step explanation:

Credit Cost : The company provides a $300 credit to the commercial boat company for returning the old motor.

Refurbishment Cost : The refurbishment of the motor costs the company $500 for parts and employee time.

Total Cost : The total cost incurred by the company for refurbishing one motor is the sum of the credit cost and the refurbishment cost: Total Cost = $300 + $500 = $800

Sale Price : The refurbished motor is sold for $1200.

Profit Calculation : Profit is calculated by subtracting the total cost from the sale price: Profit = Sale Price − Total Cost = $1200 − $800 = $400


Therefore, the motor company's profit on the refurbished motor is $400.
The correct multiple-choice option is $400 .

Answered by DanielJosephParker | 2025-07-07

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