Hello!These are 20 questions about physics light and color HW7.docx and these files to help : Lecture23.pdf Lecture22.pdf please read the file before you offer 

Lab Report   Name: ____________________  Section: ___________________EXPERIMENT: Hooke’s LawDATA TABLE 1: Spring 1 NOTE: Accumulated elongation is the total distance from the reference point, not the sum of increments. Force (N)Accumulated  (cm) Elongation (stretch)Accumulated (m) Elongation (stretch)Elastic PE(Joules)Data Point 1Data Point 2Data Point 3Data Point 4Data Point 5Data Point 6Data Point 7Data Point 8Data Point 9Data Point 10DATA TABLE 2: Spring 2 NOTE: Accumulated elongation is the total distance from the reference point, not the sum of increments. Force (N)Accumulated  (cm) Elongation (stretch)Accumulated (m) Elongation (stretch)Elastic PE(Joules)Data Point 1Data Point 2Data Point 3Data Point 4Data Point 5Data Point 6Data Point 7Data Point 8Data Point 9Data Point 10DATA TABLE 3: Rubber band NOTE: Accumulated elongation is the total distance from the reference point, not the sum of increments. Force (N)Accumulated  (cm) Elongation (stretch)Accumulated (m) Elongation (stretch)Elastic PE(Joules)Data Point 1Data Point 2Data Point 3Data Point 4Data Point 5Data Point 6Data Point 7Data Point 8Data Point 9Data Point 10Questions:A.How does the relative stiffness of a spring relate to its spring constant?B.How does PE change relative to the stretch of the spring?C.Indicate on your graph for the rubber band where the linear behavior stops. What does this mean?D.Which is stronger in the region where Hooke’s law is obeyed, the spring or the rubber band? Explain.E.Explain what happens to the "spring constant" of the rubber band for the non-linear part of your curve.

Week 13 Lab Report   Name: ____________________   Section: ___________________ EXPERIMENT: Determining the Speed of Sound Data Table: Tuning fork frequency, Hz(printed on the fork)Length, Lwater level to top of tubeDiameter of tube, dl =4(L + 0.3d)Experimentalv=flRoom Temperature,oC Percent error of experimentally derived value: ______________ Question: Considering the length of your resonance tube, what is the lowest frequency tuning fork you could use for this experiment? Show your calculations!