Calculate her efficiency as a heat engine

Assignment Help Physics
Reference no: EM13659499

A 53-kilogram mountain climber, starting from rest, climbs a vertical distance of 768 meter. At the top, she is again at rest. In the process, her body generates 4.4 × 106 Joule of energy via metabolic processes. In fact, her body acts like a heat engine, the efficiency of which is given by Equation 15.11 as e = |W|/|QH|, where |W| is the magnitude of the work she does and |QH| is the magnitude of the input heat. Calculate her efficiency as a heat engine.

Reference no: EM13659499

Questions Cloud

Determine how many years would it take before the ice melted : Occasionally, huge ice bergs are found floating on the ocean's currents. Assume one such ice berg is 122 kilometer long, 35.1 kilometer wide and 207 meter thick. Determine how many years would it take before the ice melted
Find what should the orientation of its transmission axis be : Sunlight which reflects off smooth planes like those of roads or standing water becomes horizontally polarized in the process. find what should the orientation of its transmission axis be
Find what percentage of the gas propellant : An astronaut in his space suit and with a propulsion unit (empty of its gas propellant) strapped to his back has a mass of 158 kilogram. Find what percentage of the gas propellant in the totally filled propulsion unit was depleted
Evaluate the magnitude of magnetic field at center of coil : A flat circular coil with 105 turns, a radius of 10-2 m, and a resistance of 0.480 Ω is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. Evaluate the magnitude of the magnetic field at the center of the..
Calculate her efficiency as a heat engine : A 53-kilogram mountain climber, starting from rest, climbs a vertical distance of 768 meter. At the top, she is again at rest. Calculate her efficiency as a heat engine
Calculate the thickness of the foil : On one episode of Myth busters, Adam and Jamie try to make a lead balloon that will float when filled with helium. Calculate the thickness of the foil
Evaluate the length of the rod at the higher temperature : A long thin steel rod is 500.00 centimeter long at 0oC. When exposed to the summer sun, its temperature is raised to 33oC. Evaluate the length of the rod at the higher temperature
Obtain the final temperature of coffee in degrees celsius : A thermos contains 148 cm3 of coffee at 88.5°C. To cool the coffee, you drop two 12.2-gram ice cubes into the thermos. Obtain the final temperature of the coffee in degrees Celsius
Calculate what is the initial length of the quartz rod : One rod is made from quartz and another from lead. The rods are heated and experience the same change in temperature. calculate the initial length of the quartz rod

Reviews

Write a Review

Physics Questions & Answers

  Find the magnitude of the resulting magnetic field

A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.

  Find the equivalent resistance

A resistor is in the shape of a cube, with each side of resistance  R . Find the equivalent resistance between any two of its adjacent corners.

  What is the electric field at the location

Question: Field and force with three charges? What is the electric field at the location of Q1, due to  Q 2 ?

  What is the maximum displacement of the bridge deck

What is the maximum displacement of the bridge deck?

  What is the magnitude of the current in the wire

What is the magnitude of the current in the wire as a function of time?

  Blackbody

Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.

  Gravity conveyor

Illustrate the cause of the components accelerating from rest down the conveyor.

  Calculate the dc voltage

Calculate the dc voltage applied to the circuit.

  Quadrupole moments in the shell model

Quadrupole moments in the shell model

  Determine the tension in each string

Determine the tension in each string

  Introductory mechanics: dynamics

Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.

  Evaluate maximum altitude

Evaluate maximum altitude?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd