4. Calculate and record the percentage error of fexp compared to the known value (standard) of the frequency f-60 Hz. 5. Suppose the system described in question 4 has a string with a linear density µ-2.95 x 104 kg/m. What is the tension T, in the string for one loops. Show your work. Answer all questions: 1. Was the experiment accurate in finding the experimental value for the frequency? State clearly the basis for your answer. 2. Was the experiment of finding the frequency précised? What would your need to answer this question? Explain your reasoning.

7)

If you have a mirror that curved in the opposite direction, then the one that is in #4 (in the image attached) Will the focal length be the same for this mirror as it is in #4? It will still be negative It will now be positive It is hard to know at this time It will not have a focal length   Describe what this mirror looks like in the space below Now draw that mirror       Go back up to part n and do the following steps: Draw the ray that will only head to the vertex. MAKE SURE TO LABLE THIS RAY AS #1 Now depending on where you put the vertical arrow, draw the ray that goes thru the focal point Can you see where this image will form? Yes No   Circle all that apply… From the notes and the lecture, the image formed will be: On the same side as the object On the opposite side of the mirror It will depend on the object’s location   Is this image located: Behind the focal point In front of the focal point At the center of curvature Behind the center of curvature Between the…

A 4.0-cm-tall object is 15 cm in front of a convex mirror that has a -25 cm focal length. E