First convert Kelvin to Celsius and then Celsius to Fahrenheit. DLSB A(n) 130-kg

Question

First convert Kelvin to Celsius and then Celsius to Fahrenheit. DLSB A(n) 130-kg student eats a 185-Calorie doughnut. To burn-it-off, he decides to climb the steps of a tall building. How high (in m) would he have to climb to expend an equivalent amount of work? 4. a. 607.9 m b. 519.9 m .611.0m d. 463.3 m e. 680.8 m f. 727.7 m The Calorie is not the SI unit for energy. So convert it to Joules. (1 Cal 4186 J) Now this amount of energy (in the doughnut) will equal the student's gravitational potential energy Ugmgy, where y is the height.

Explanation / Answer

given
m = 130 kg
E = 185 calorie doughnut

now from conversion chart
E = 185 calories = 774040 J

so lets assume he has to climb height h to make up for this doughnut
hence
mgh = 774040
hence
h = 606.947384929 m
hence option a. 607.9 m

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