Register to reply

Mechanical Equivalent of Heat

by minidee
Tags: equivalent, heat, mechanical
Share this thread:
Apr13-09, 09:28 PM
P: 21
This lab involves a spool that has a crank on it and also has a string wrapped around it several times with a mass hanging on the edge of the string hanging vertically.

4.)Suppose, the cord where it is attached to the post, is under tension during the experiment. Would this lead to error in your measured value of the mechanical equivalent of heat? If so, would you value be too large or too small?

I would say there would not be an error because the tension will be equal to the frictional force so the value of work would not change since mechanical equivalent= work/heat the value would not change.

I don't know if I'm correct however. Please help! Thanks!!! Guys!
Phys.Org News Partner Science news on
Flapping baby birds give clues to origin of flight
Prions can trigger 'stuck' wine fermentations, researchers find
Socially-assistive robots help kids with autism learn by providing personalized prompts

Register to reply

Related Discussions
Physics Lab - Mechanical equivalent of heat Introductory Physics Homework 1
Statistical Mechanical interpretation of work and heat Classical Physics 0
Mechanical equivalent of a coil Classical Physics 5
Mechanical equivalent of heat Classical Physics 5
Mechanical equivalnet of heat Introductory Physics Homework 7