Yes because you are not changing it chemically.
Yes, a haircut is a physical change.
Yes. But remember; it will always grow back!
Physical Change
Getting a haircut is a service and no goods changed hands.
Yes.
Getting hotter is physical, getting harder is almost pure chemical.
It is definitely a chemical change
There is no way to change your age in Runescape. You are able to change your physical appearance, however. Just go to Faldor to get a haircut or Varrok to get a makeover. You can go Southwest of faldor to go to the makeover mage where you can change from a man to a woman.
it is better to get them all cut
It is a chemical change.
Does your hair actually change when it's cut? No, so it's just a physical change from long to short.
chemical change is reversible whereas physical is irreversible e.g a paper after getting burnt cant be converted to paper again this is a physical change