How is speed different from velocity​

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law

You will be galileo perform the experiment to determine if objects with different mass fall at the same, or different, rates in the air and in a vacuum. (refer to the walk-through video to locate the online lab within the online textbook).