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3 years ago

9

Two trains traveling on parallel tracks are going toward each other from a distance of 552 miles. If the freight train is moving

at 38 mph and the passenger train is moving at 54 mph, when will the trains pass each other?

1 answer:

irga5000 [103]3 years ago

3 0

Answer:

6hrs

Explanation:

t = time taken until the trains pass by each other/hrs

38 + 54 = 92

Use time = distance/speed:

t = 552/92 = 6

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Here we have two resistors of

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and each resistor has a power rating of

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So the greatest potential difference allowed not to overheat either of the resistor is 14.1 V.

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And this corresponds to the rate of heat generated in the first resistor (2.00 W) and in the second resistor (1.33 W).

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