Around 1915, henry sincosky of philadelphia suspended himself from a rafter by gripping the rafter with the thumb of each hand on one side and the fingers on the opposite side. sincosky’s mass was 79 kg. (after suspending himself, sincosky chinned himself on the rafter and then moved hand-over-hand along the rafter for about 6 feet.) if the coefficient of static friction between henry’s fingers and rafter was 0.70, what was the least magnitude of the normal force on the rafter from each thumb or opposing fingers to suspend henry via friction forces?

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.