Calculate the amount of energy dissipated by an average adult person sleeping for 8 hours if he or she generates 0.7 mets and has a body surface area of 18.1 ft2. Express your results in Btu and joules (1 Btu = 1,055 joules). Express the amount of energy in Btu. Show all conversion steps. = (0.7 mets) Btu h · ft2 1 met ( ft2)( h) = Btu Express the amount of energy in joules. Show all conversion steps. = (the energy in Btu) joules 1 Btu = J

Calculate the amount of energy dissipated by an average adult person sleeping for 8 hours if he or she generates 0.7 mets and has a body surface area of 18.1 ft2. Express your results in Btu and joules (1 Btu = 1,055 joules). Express the amount of energy in Btu. Show all conversion steps. = (0.7 mets) Btu h · ft2 1 met ( ft2)( h) = Btu Express the amount of energy in joules. Show all conversion steps. = (the energy in Btu) joules 1 Btu = J

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.22P: 1.22 In order to prevent frostbite to skiers on chair lifts, the weather report at most ski areas...

See similar textbooks

Similar questions

A student evaluates a weight loss program by calculating the number of times he would need to climb a 11.0 m high flight of steps in order to lose one pound (0.45 kg) of fat. Metabolizing 1.00 kg of fat can release 3.77 ✕ 107 J of chemical energy and the body can convert about 19.4% of this into mechanical energy (the rest goes into internal energy.) (a)How much mechanical energy (in J) can the body produce from 0.450 kg of fat? (b)How many trips up the flight of steps are required for the 74.0 kg student to lose 0.450 kg of fat? Ignore the relatively small amount of energy required to return down the stairs.
Q1. The following data is obtained during geothermal drilling operation. Rock density = 1550 kg/m ³, heat capacity of the rock = 0.00163 J/kg K, temperature difference = 80 K. How much will be the thermal heat content of the rock at the geothermal site? Discuss about geothermal gradients their importance in energy exploration. Do you think utilization of geothermal energy worldwide is increasing yearly? Justify your answer. Do you think the geothermal energy available in this site can be used for a metal melting industry?
AE ll ll A:£0 docs.google.com/forms When a stationary mass of gas was compressed without friction at constant pressure its initial state of 0.8 m3 and 0.105 MPa was found to change to final state of 0.40 m3 and 0.105 MPa. There was a transfer of 85 kJ of heat from the gas during the process.How much did the internal energy of the gas change ? * 1 Add File Derive the law pv^y = constant * 1 Add File Вack Next Never submit passwords through Google Forms. This form was created inside L Iniversity of Al-
A Ford Explorer can refuel with 10 gallons of gasoline in 2 minutes. Given gasoline has an energy content of 13,000 Wh/kg, express this flow of gasoline in terms of energy flow in watts = joules/sec
1. Nitrogen contained in a piston-cylinder device is compressed from 0.5 to 0.2 m³. During the process, the pressure and volume are related by PV2=aV+ b. The values of a and b are given in the table below. Calculate the work done on the nitrogen during this process. (25 Points) Student number 1 210505269 a (kPa.m³) 8.0 b (kPa.m6) 4.0
1.1 A steam power station uses coals of calorific value of 5308 kcal/kg. The overall efficiency of the power station is 21.5% and a coal power station uses 6,98tonnes of coal every 15 minutes to generate the maximum demand. The purchasing price of coals is R600 per tonne. (NB: 1 kWh = 861 kcal)(a) Determine the coal consumption in kg per kWh (b) Determine the cost of purchasing the coals per week if the load factor is 65%.
Human fat has a density of 0.918 g/cm^3. How much volume (in cm^3) is gained by a person who gains 10.0 lb of pure fat?
The Body Mass Index (BMI) is a number that is often used to determine if an individual is a healthy weight. The function for finding an individual's BMI is: 720w f(w, h) = which could also be written as f(w,h) = (720w) ÷ h? h2 where w = weight in pounds and h = height in inches. Use the BMI function to find the BMI for individuals with the following weights and heights: Round your answers to the nearest tenth. weight = 106 pounds and height = 57 inches 22.90 weight = 200 pounds and height = 68 inches 30.40 weight = 219 pounds and height = 78 inches Number weight = 210 pounds and height = 76 inches Number
Q1/ An engine cylinder has a piston of area 0.12 m3 and contains gas at a pressure of 2.5 MPa. The gas expands according to a process which is represented by a straight line on a pressure- volume diagram. The final pressure is O.5 MPa. Calculate the work done by the gas on the piston in KJ if the stroke is 0.20 m. *
The rate of heat lost through insulation varies inversely as the thickness of the insulation. The rate of heat lost through a 3.5-inch thickness of insulation is 2200 Btu per hour. What is the rate of heat lost through a 5-inch thickness of the same insulation?
The joule is a unit of work(or energy), defined by 1 joule = 1 newton meter. Convert 8 joule to ft·lbf. 21.653 x ft lbf
Using the experimental set-up in the simulation, consider the following given: mechanical energy at A is 10J and mechanical energy at B is 8J. What is the work done by other forces (in J)? Do not include the unit in your answer as this is already indicated in the question. Answer: A B C