If an athlete expends 1950 kJ/h, how long does it take her to work off 1.0 lb of body fat? (See Problem 6.14.)

Respuesta :

8.79 hours long does it take her to work off 1.0 lb of body fat.

To solve this question, first we convert 1950 kJ/h to kcal and then convert that value into nutritional calories per hour.

1kJ = 0.239 kcal

1950 kJ/h ×  [tex]\frac{0.239 kcal}{1 kJ}[/tex] × [tex]\frac{1 calorie}{1kcal}[/tex] = 466.05 Calories/h

Now, we divide 4.10× [tex]10^{3}[/tex] calories by 466.05 Calories/h.

Time = (4.10× [tex]10^{3}[/tex] calories) ÷ (466.05 Calories/h) = 8.79 hours.

A calorie is a unit of strength. In nutrition, calories discuss with the power people get from the foods and drinks they eat, and the electricity they use in physical interest. calories are indexed within the nutritional information on all meals packaging. Many weight loss packages center around decreasing the intake of calories.

Fat is a tissue that is wished with the aid of the body for a huge kind of functions which include temperature law, proper reproductive abilities, shock absorption, the regulation of other nutrients and to hold healthy pores and skin, hair and nails.  For human beings elderly 20 to 39, girls must aim for 21% to 32% of frame fats. Men should have 8% to 19%.

Learn more about calories here :- https://brainly.com/question/13422058

#SPJ4