Posted by **Sam** on Wednesday, February 29, 2012 at 4:45pm.

A person performs a work task at a mechanical efficiency of 20 percent and at total energy output of 15kcal/min. How much energy(kcal/min) is lost as heat? and how much energy(kcal/min) is used to actually perform the work?

- Science -
**Frodo**, Tuesday, October 7, 2014 at 9:22am
Cock in ma mouth

## Answer this Question

## Related Questions

Kinesology - A person performs a work task at a mechanical efficiency of 20 ...

physics - (a) calculate the number of kilocalories needed to climb 232 stair ...

science - a fan uses 150j of mechanical energy, 20j of heat and 75j of sound ...

int.science gtg in 8 min. - How much heat is contained in 100 kg of water at 60....

Int.Science - How much energy is needed to heat and melt 3.0 kg of copper ...

physics - calculate the number of kilocalories needed to climb 232 stair steps (...

science(check answers) - can someone check my answer thanks ! 2.The ability to ...

Chemistry - A person falls in water at 0 C. After 30 min in the water, he/she ...

Physics / Heat Transfer - How much heat must be removed from a 200 g block of ...

Physics - (a) How much heat in kcal must be provided for a 0.853 kg block of ...