Because they are caused by your exercise
Good. You can do some very interesting experiments with that equipment.
The kinds of atoms in the substance and their arrangements
Nope.
Energy is directly proportional to frequency. and when you calculate energy, you multiply frequency with a constant number called "Planck's Constant"
E = hf
Hope this helps!
You can put the name of the product and the price and add another column and add all of your expenses<span />
