Physics

A weight lifter manages to lift a 147 kg weight a distance of 1.1 m. Treat her as a thermodynamic system and find how much heat (in kcal) she must put out if her internal energy decreases by 3620 J during the lift.

Not sure how to answer this.

  1. 👍 0
  2. 👎 0
  3. 👁 165
asked by Riley
  1. Help?

    1. 👍 0
    2. 👎 0
    posted by Riley

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A weight lifter manages to lift a 147 kg weight a distance of 1.1 m. Treat her as a thermodynamic system and find how much heat (in kcal) she must put out if her internal energy decreases by 3620 J during the lift.

    asked by Riley on January 31, 2014
  2. Biomechanics

    An 88.9 kg weight lifter is required to perform a snatch movement for their final lift in a weight lifting competition. The standard weight lifting bar is 20 kg and the load attached to the bar was in the form of 6 x 20 kg weight

    asked by Chleo on May 7, 2012
  3. Physics

    A weight lifter is bench-pressing a barbell whose weight is 710 N. He raises the barbell a distance of 0.65 m above his chest then he lowers it at 0.27 m. Determine the work done on the barbell by the weight lifter during:a.)the

    asked by Amiel on March 18, 2015
  4. Physics

    A weightlifter manages to lift a 133 kg (that's 293 pounds, which sounds much more impressive) weight a distance of 1.4 m. How many kcal of heat energy is equivalent to this lift?

    asked by Randall on January 17, 2014
  5. Chemistry

    A weightlifter manages to lift a 133 kg (that's 293 pounds, which sounds much more impressive) weight a distance of 1.4 m. How many kcal of heat energy is equivalent to this lift?

    asked by Randall on January 15, 2014
  6. Science

    A weight lifter lifts a barbell from the ground, raises it at a constat velocity and holds it motionless over his head. How does the force of the lifter compare with the wieght of the barbell at different stages of the lift?

    asked by Sally on April 11, 2012
  7. Thermodynamics

    In exercising, a weight lifter loses 0.100 kg of water through evaporation, the heat required to evaporate the water coming from the weight lifter's body. The work done in lifting weights is 1.30 x 10^5 J. (a) Assuming that the

    asked by Louise on April 16, 2007
  8. biomechanics

    When a weight-lifter lifts a weight equal to his upper body weight his trunk makes an angle of 40 degrees, with the vertical, as shown in the diagram below. In this position the erector spinae muscles exert a large force on the

    asked by dmkp on December 12, 2012
  9. physics

    A patient is getting his elbow rehabilitated. He is told to lay his elbow flat on a table and lift a a 3.5kg weight by bending his elbow( he's raising his forearm itself and the weight). The weight is 30cm from his elbow. After

    asked by Riley on July 14, 2017
  10. physics need help plz

    An arrangement of two pulleys, as shown in the figure, is used to lift a 49.6-kg mass a distance of 3.70 m above the starting point. Assume the pulleys and rope are ideal and that all rope sections are essentially vertical. (a)

    asked by Akbar on June 8, 2012

More Similar Questions