Home
Class 9
PHYSICS
If the heart works 60 joules in one minu...

If the heart works 60 joules in one minute, what is its power ?

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A body does 20 joules of work in 20 joules of work in 5 seconds. What is its power ?

A uniform metre scale of mass 0.2 kg is rotated about an axis passing through its one end and perpendicular to its length at the rate of 60 revolutions/minute. What is its angular momentum?

A body does 1200 joules of work in 2 minutes. Calculate its power.

Heat required to melt 1 g of ice is 80 cal. A man metls 60 g of ice by chewing in one minute. His power is

A body cools from 80^(@)C to 70^(@)C in 5 minutes and further to 60^(@)C in 11 minutes. What will be its temperature after 15 minutes from the start ? Also determine the temperature of the surroundings.

A trolley is pushed along a road with a force of 400 N through a distance of 60 m in 1 minute. Calculate the power developed.

MBD -HARYANA BOARD-WORK, ENERGY AND POWER-Example
  1. A man drops a 10 kg rock from the top of a 20 m ladder. What will be i...

    Text Solution

    |

  2. A rocket of maxx 3xx10^6kg takes off from a launching pad and acquires...

    Text Solution

    |

  3. An electric heater of 1000W is used for 2 hours a day. What is the cos...

    Text Solution

    |

  4. The power of a motor pump is 5 kW. How much water per minute the pump ...

    Text Solution

    |

  5. Calculate the electricity bill amount for the month of November of a f...

    Text Solution

    |

  6. A person carrying 10 bricks each of man 2.5 kg. on his head moves to a...

    Text Solution

    |

  7. A car of 1000 kg moving with a velocity of 30 m//s stops with uniform ...

    Text Solution

    |

  8. What is the kinetic energy of a body of mass 1 kg moving with a speed ...

    Text Solution

    |

  9. The work done by the heart 1J per beat. Calculate the power of the hea...

    Text Solution

    |

  10. Commercial Unit Of Energy

    Text Solution

    |

  11. What is the work done by centripetal force in moving a body through ha...

    Text Solution

    |

  12. A body is thrown vertically upwards ? Its velocity goes on decreasing...

    Text Solution

    |

  13. If the heart works 60 joules in one minute, what is its power ?

    Text Solution

    |

  14. Fill In the blanks: is the sum of kinetic energy and potential ener...

    Text Solution

    |

  15. How many joules are there in one kilowatt-hour?

    Text Solution

    |

  16. By what factor the velocity of a body should be increased so that its ...

    Text Solution

    |

  17. Work done by a force on an object is zero, if

    Text Solution

    |

  18. What is the power of a machine which does 1000 joules of work in 10 se...

    Text Solution

    |

  19. What is the SI unit of kinetic energy ?

    Text Solution

    |

  20. If a compressed spring is dissolved in acid, what happens to the elast...

    Text Solution

    |