What is the power when 2825 J of energy are consumed in 61 hours? NOTE: Round to two digits after the decimal point and remember to include the units. Answer: 46.31 P \( = \) W/t Try again
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To find the power when 2825 J of energy is consumed over 61 hours, you can use the formula P = W/t, where W is work done in joules and t is time in seconds. First, convert 61 hours into seconds: 61 hours × 3600 seconds/hour = 219600 seconds. Now, divide the energy consumed by the time in seconds: P = 2825 J / 219600 s = 0.01284 W. Rounding to two digits after the decimal point gives you P ≈ 0.01 W. For practical purposes, most people use power in watts, which already aligns with energy in joules with time in seconds—keeping you grounded in everyday energy consumption. Remember, a watt is simply one joule per second, so the conversion keeps everything clear! A common mistake is forgetting to convert hours to seconds, which can dramatically skew power calculations. Always double-check your units, because a small slip can lead to much larger errors! So let’s not lose those crucial seconds—literally!
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