subject
Physics, 04.11.2020 07:00 lashaaungas

A person eats a dessert that contains 230 Calories. (This "Calorie" unit, with a capital C, is the one used by nutritionists; 1 Calorie = 4186 J. See Section 12.7.) The skin temperature of the person is 36 °C and that of her environment is 18 °C. The emissivity of her skin is 0.84 and its surface area is 1.5 m2. How many hours would it take her to emit a net radiant energy from her body that is equal to the energy contained in this dessert?

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 13:50
What is binding energy and separation energy
Answers: 1
question
Physics, 21.06.2019 21:00
While listening to operatic solos, musicians process the lyrics and the tunes in separate brain areas. this most clearly illustrates the functioning of different
Answers: 1
question
Physics, 22.06.2019 01:10
Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?
Answers: 3
question
Physics, 22.06.2019 08:30
A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.
Answers: 3
You know the right answer?
A person eats a dessert that contains 230 Calories. (This "Calorie" unit, with a capital C, is the o...
Questions
question
History, 27.10.2020 22:10
question
Mathematics, 27.10.2020 22:10
question
English, 27.10.2020 22:10