🧵 How to calculate how much a collision heats up each object
Anonymous at Tue, 25 Jun 2024 23:48:24 UTC No. 16253900
This isn't homework, I'm looking to learn how to calculate how much a collision heats up each object.
Imagine a single water molecule is bouncing down a hill and for simplicity say the hill is a steel slope of 30 degrees.
How much does the molecule heat up the steel on each bounce?
Anonymous at Wed, 26 Jun 2024 00:11:40 UTC No. 16253954
loss of kinetic enrrgy due to friction is a good first estimate.
Anonymous at Wed, 26 Jun 2024 00:44:53 UTC No. 16254014
bro using 4chan for homework help
Anonymous at Wed, 26 Jun 2024 00:54:53 UTC No. 16254031
>>16253900
What matters here is the energy lost in each collision. For that, you need the COEFFICIENT OF RESTITUTION, a number between zero and one that tells how bouncy the collision was. Zero means they stick together at impact and all rebound energy is lost (to heat). One means the collision was perfectly elastic and no energy was lost.
If the surface is considered an immovable object, then the energy lost is
[math](1-e^2)m(v_2-v_1)^2/2[/math]
where e is the coefficient of restitution, m is the particle mass, and the v values are its speeds perpendicular to the surface before and after the collision.
As always, should you or any of your IM force be caught or killed, the secretary will disavow any knowledge of your actions.
Good luck, Jim!
Anonymous at Wed, 26 Jun 2024 04:55:12 UTC No. 16254251
>>16253954
>>16254031
Thank you.