Why equal to the energy contained in dessert

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Reference no: EM1372638

Q. An 845-N sled is pulled a distance of 170 m. The task requires 1.10 x10^4 J of work and is done by pulling on a rope with a force of 12N. At what angle is the rope held?

Q. A person eats a dessert that contains 220 Calories. (This "Calorie" unit, with a capital C, is the one used by nutritionists; 1 Calorie = 4186 J. The skin temperature of the person is 35.3 °C and that of her environment is 21.40°C. The emissivity of her skin is 0.74 and its surface area is 1.20 m2. How many hours would it take her to emit the net radiant energy from her body that is equal to the energy contained in this dessert?

Reference no: EM1372638

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