Two perfectly matched athletes on level ground are pulling opposite ends of a rope in a tug of war. the rope is not moving or accelerating. each athlete can pull with a force of 200 pounds. the system of interest is defined as the athlete holding the east end of the rope, (but not the rope itself or the ground, etc). the net force on the system )200 pounds. b)0 pounds. c)400 pounds.

Who was the first scientist to measure speed as distance over time?

If there's a small amount of friction between two surfaces, the result could be select all that applya. no movement b. heatc. a little bit of movementd. sliding around

4. now look at the green lines you created by connecting the three boiling point data points and the three melting point data points. for each of these lines, describe any trends you see. 5. locate the elements on your periodic table that you circled in green on your graph. what term or description would you use to identify these elements with respect to the periodic table? 7. using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers.