please answer 8 and 9 with good explanations since i am having a hard time with physics. also please check my number 10 and see if it is correct.

8. Draw on the image below and describe with words how to measure h and D. If multiple measurements go into making either measurement, then describe as much. Be thorough - ambiguity will not earn full credit (it is your job to be clear, not you instructor's job to interpret what you mean). 9. State and justify the uncertainties you have determined for h and D. 10. Using the value of D from your session today, calculate the maximum allowable value of h that you may use that keeps the track tilted less than 8. Show your work here. D= 109.4 cm sing = h D h= sing (D ) =(sin8 ) 109.4 h = 15.23 cm Rev 7/2022 CV 3