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...
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...
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)...