Final answer:
The calculation of coulombs moved by a car battery involves multiplying the number of electrons (3.75 × 1021) by the charge of a single electron (1.602 × 10-19 C/electron), resulting in 600.75 coulombs of charge.
Step-by-step explanation:
The student's question pertains to the measurement of electrical charge moved by a car battery to start an engine. To calculate the number of coulombs moved when a car battery releases 3.75 × 1021 electrons through a starter motor, we use the elementary charge of an electron, which is approximately 1.602 × 10-19 coulombs per electron. The starter motor rotates x times faster than the engine.
To find the value of x, we need more information about the car's engine and starter motor.
The calculation is straightforward:
- Multiply the number of electrons by the charge of a single electron.
- (3.75 × 1021) × (1.602 × 10-19 C/electron) = 6.0075 × 102 coulombs.
Thus, the car battery moves 600.75 coulombs of charge through the starter motor to start the car's engine.