Who is the father of science?

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?