Determine the magnitude of the heat the athlete gives off

Assignment Help Physics

Reference no: EM13308040

Heat engines take input energy in the form of heat, use some of that energy to do work, and exhaust the remainder. Similarly, a person can be viewed as a heat engine that takes an input of internal energy, uses some of it to do work, and gives off the rest as heat. Suppose a trained athlete can function as a heat engine with an efficiency of 0.18.

(a) What is the magnitude of the internal energy that the athlete uses in order to do 9.8x104 J of work?

(b) Determine the magnitude of the heat the athlete gives off.

Reference no: EM13308040

Questions Cloud

What is the accleration of the boats : A tugboat pulls two barges with a force of 3000N. The water slows each of the boats with a force of 200N (3 total forces of 200N each). what is the accleration of the boats

Compute the resulting entropy change of the universe : An object of heat capacity 100 cal/C is initially at 30.0C. Estimate the resulting entropy change of the universe

Electronic health records : Electronic Health Records

Determine the maximum stress and strain in the ball : A rubber ball is inflated to a pressure of 65kpa. At that pressure, the diameter of the ball is 240 mm and the wall thickness is 1.25 mm.The rubber has a modulus of elasticity E of 3.6 MPa and a poisson's ratio of 0.48.

Determine the magnitude of the heat the athlete gives off : Heat engines take input energy in the form of heat, use some of that energy to do work, and exhaust the remainder. Determine the magnitude of the heat the athlete gives off

Turks and mongols influenced these two civilizations : Compare and contrast each society’s social, cultural, political, and religious climate. Comment on the two civilizations’ economic environment. In addition, describe how the Turks and Mongols influenced these two civilizations.

How much time does it take to lift the piano : A 3.0x10 ² kg piano is being lifted at a steady speed from ground level straight up to an apartment 10 m above the ground. How much time does it take to lift the piano

What is the maximum internal pressure for the maximum stress : If the maximum stress that the tank can sustain equals 22.857 ksi, determine the required thickness (to the nearest 1/4 inch). If the tank wall thickness is specified to be 2.25 inches.what is the maximum internal pressure

What is the center of mass of the collection masses : Object A has a mass of 10.0 kg and is located at xA = 0.0 m on the x-axis. Object B has a mass of 15.0 kg, What is the center of mass of the collection masses

User Account

All Pages