Convert 6.95×105 cal to joules. recall that 1 cal=duncan takes a break from studying and goes to the gym to swim laps. if swimming burns 6.95×105 cal per hour, how many kilojoules does swimming burn in that same amount of time? in other words, convert 6.95×105 cal to kilojoules.4.184 j.

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Taylorprideee1911 Taylorprideee1911

25-08-2017
Physics

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Convert 6.95×105 cal to joules. recall that 1 cal=duncan takes a break from studying and goes to the gym to swim laps. if swimming burns 6.95×105 cal per hour, how many kilojoules does swimming burn in that same amount of time? in other words, convert 6.95×105 cal to kilojoules.4.184 j.

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meerkat18 meerkat18 · Answer 1 · 2017-09-06T18:24:10+02:00

For this problem, let's use the approach of dimensional analysis. This technique is done by cancelling out like units that appear both on the numerator and the denominator side. As a result, this technique will let you know that your final answer conforms to what parameter is asked. In this case, the final answer should be in kJ. We use the conversion: 1000 cal = 4.184 kJ The solution is as follows:

6.95×10⁵ cal * 4.184 kJ/1000 cal = 2,907.88 kJ