A trailer truck is travelling on the interstate with a speed of 72 km/hr. The trailer has a 1- ton cab and a 5-ton trailer. The braking system for the front and middle wheels prevent the wheels from sliding, while the braking in the rear wheels is not functioning. Knowing that the coefficient of static friction is 0.5, determine (a) the shortest time for the truck to come to a stop, (b) the horizontal force in the coupling during that time. Assume that the trailer weight is uniformly distributed and that it is partially supported by the cab

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.