Search results

  1. Lukeblackhill

    Heat during the Day

    Hi! My question is: I understand that at noon-day it’s hotter because of the angle with which sun rays enter our atmosphere. But at the same time, I was wondering that the band of radiation responsible for heating things is infrared, and that at noon basically all bands of lower frequency than...
  2. Lukeblackhill

    Heat and Sound

    Thank you @jbriggs444 , that was enlightening.
  3. Lukeblackhill

    Heat and Sound

    But in principle, would it be possible to arrange mechanical variables such as mass and speed to define heat, sound, etc?
  4. Lukeblackhill

    Heat and Sound

    Morning! My question is this: If we consider a situation of mechanical collision, in the real world we shall observe certain loss of energy into heat or sound. Can we find mathematical equations to measure the amount of sound or heat produced using only mechanical variables, such as mass...
  5. Lukeblackhill

    Question about Newton's Second and Third Laws

    https://www.physicsforums.com/conversations/falling-chains.137676/
  6. Lukeblackhill

    Question about Newton's Second and Third Laws

    Excellent reply @FactChecker. I'd like to invite you to my discussion about the problems with falling chains.
  7. Lukeblackhill

    Question about Newton's Second and Third Laws

    Eleni, what happens here is a question of reference. When the bullet leaves the gun (if the distance is not too big), it will move at constant speed, undaunted by the wind resistance. When it collides with you, it will pass to you it's amount of motion (the product of its mass by its velocity)...
Top