How do the displacement, velocity, and acceleration of a runner change as he races from the starting line
toward the finish line along a straight path?

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

There are main groups in the modern periodic table of elements

What can be found in the ionosphere