physical changes occur when existing bonds break and new bonds form

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

How is the ideal mechanical advantage of a wheel and axle calculated?

The law of entropy can also be called the law of increasing disorder, but this law seems to contradict the existence of living organisms that are able to organize chemicals into organic molecules. prepare for a class debate on the validity of the following arguments: a. living things are not subject to the laws of thermodynamics. b. the increase in the universe's entropy due to life processes is greater than the decrease in entropy within a living organism.