3 years ago

How do electromagnets produce a force?

1 answer:

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A current turns a conductor into an electromagnet. ... When the electromagnet is placed near a fixed magnet, the two sets of poles repel and attract each other. This produces a force that makes the conductor rotate (spin) at high speed. This turns a shaft, which then drives a machine.

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As you travel from the North Pole toward the equator, you would expect to see:

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The headwaters of a river are at an elevation of 1,229 feet and the river flows 373 miles to the ocean. Determine the river's av

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Answer:

3.29ft/mi

Explanation:

The gradient of a river is the slope through which a river flows. It measures the vertical drop in elevation of river to the horizontal distance.

Mathematically;

River gradient = $\frac{Elevation}{horizontal distance}$