PHYSICS

posted by .

A) The average power output of the human heart is 1.33 watts. How much energy does the heart produce in a day?

B) Compare the energy found in part (a) with the energy required to walk up a flight of stairs. Estimate the height a person could attain on a set of stairs using nothing more than the daily energy produced by the heart.

  • PHYSICS -

    A) E=P•24•3600 = ...
    B) E=mgh
    h=E/mg= P•24•3600/60 •9.8 = ....

  • PHYSICS -

    A) 1.1x 10^5 J
    B)195m

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. astrophysics

    1) Every second the Sun outputs 3.90* 10^26 Joules of energy. Power is energy output per unit time and is given in units of Watts (W) where 1 W = 1 Joule per second. The Sun's power output is therefore 3.90*10^26 Watts. This is called …
  2. astrophysics

    1) Every second the Sun outputs 3.90* 10^26 Joules of energy. Power is energy output per unit time and is given in units of Watts (W) where 1 W = 1 Joule per second. The Sun's power output is therefore 3.90*10^26 Watts. This is called …
  3. physics

    A 64 kg hiker climbs to the top of a 3700 m-high mountain. The climb is made in 5.5 h starting at an elevation of 2900 m. Calculate the average power output in watts. Calculate the average power output in horsepower & Calculate assuming …
  4. physics

    It has been proposed to use large inductors as energy storage devices. How much electrical energy is converted to light and thermal energy by a light bulb with a power of 195 W in one day?
  5. Physics

    During each heartbeat, approximately 71 cm3 of blood is pushed from the heart at an average pressure of 105 mm-Hg. Calculate the power output of the heart, in watts, assuming 68 beats per minute.
  6. physics

    In open heart surgery a much smaller amount of energy will defibrillate the heart. (a) What voltage is applied to the 9.00 µF capacitor of a heart defibrillator that stores 45.0 J of energy?
  7. physics

    In open heart surgery a much smaller amount of energy will defibrillate the heart. (a) What voltage is applied to the 5.00 µF capacitor of a heart defibrillator that stores 35.0 J of energy?
  8. Physics

    The average power output of a human heart is 1.3 3 Watts. You had to pay for this energy at Wis consin Energy’s rate of $0.12061 per kWh (kiloWatt hour), what is the cost?
  9. Physics

    During each heart beat, approximately 70cubic cm of blood is from the heart at an average pressure of 105mmHg. Calculate the power output of the heart, in watts, assuming 70 beats per minute.
  10. science

    how should each form of energy be identified?

More Similar Questions