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3 years ago

if a runner's is 400 w as she runs,how much chemical energy does she convert into other forms in 10.0 minutes?

Physics

1 answer:

Fiesta28 [93]3 years ago

7 0

Explanation:

The runner runs for a total time of

\Delta t=10.0 min= 600 sΔt=10.0min=600s

The energy converted by the runner during this time is equal to the power of the runner times the total time:

E=P \Delta t=400 W \cdot 600 s =2.4 \cdot 10^5 JE=PΔt=400W⋅600s=2.4⋅10

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Answer:

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3 years ago

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3 years ago

You have a 100 ohm resistor. How

sp2606 [1]

Answer:

R2 = 300 Ohms

Explanation:

Let the two resistors be R1 and R2 respectively.

RT is the total equivalent resistance.

Given the following data;

R1 = 100 Ohms

RT = 75 Ohms

To find R2;

Mathematically, the total equivalent resistance of resistors connected in parallel is given by the formula;

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Substituting into the formula, we have;

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Cross-multiplying, we have;

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3 years ago

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zhannawk [14.2K]

Answer:

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