Look at the rock sitting on the hill in the picture above. Gravity should make the rock slide down the hill.
What force is acting to balance gravity, keeping the rock in place? What force(s) are acting upon the rock?
Which one of Newton’s Law of Motion is being demonstrated in this picture?

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

What’s #16 asking me and how do i solve it?