Question

how much energy is required to produce 6.6 w of power in 9 seconds?
report your answer to 1 decimal place. your permitted error is ±0.1 w. if your answer is negative, please make sure to include the negative sign.
answer

what is the work done on a cart if a 351 n force is applied to it for a distance of 23.0 meters?
report your answer to 1 decimal place. your permitted error is ±0.1 j. if your answer is negative, please make sure to include the negative sign.
answer

Explanation:

Step1: Recall the formula for power

Power \( P=\frac{E}{t} \), where \( E \) is energy and \( t \) is time. Rearranging for \( E \) gives \( E = P\times t \).

Step2: Substitute the given values

Given \( P = 6.6\space W \) and \( t=9\space s \), then \( E=6.6\times9 \).

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Step3: Recall the formula for work

Work \( W = F\times d \), where \( F \) is force and \( d \) is distance.

Step4: Substitute the given values

Given \( F = 351\space N \) and \( d = 23.0\space m \), then \( W=351\times23.0 \).

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Answer:

59.4
8073.0