during a 3.00 s time interval, the runners position changes from x1=50.0m to x2=30.5m what was the runners average velocity

Why does a block of metal sink in water but the same size block of wood floats

Communicable diseases can be prevented by:

Which one would you weigh more if you traveled to two different planets that were exactly the same size/volume but one was made completely of iron and the other swiss cheese? Explain.

When you arrive to the scene of an injury where the victim is unconscious, why should you not move them?

An ion of an element has 42 protons 44 neutrons and 43 electrons. What is it's charge and how did you make that determination?

a submarine moving directly upward in the water at constant speed. The weight of the summer and it is 500,000 N. The submarines motors are off. The magnitude of the buoyant force acting on the submarine is

If the car went 30 km west in 25 min. and then 40 km east in 35 min., what would be its total displacement?

Which of the following is not the name of a space station that was in orbit around Earth?

Relationship between acceleration and free fall

A SI unit used to measure force, equal to less than one-quarter of a pound, is the what