((Xou attach an object to the bottom end of a hanging vertical spring. It hangs at rest after extending the spring 18.3 cm. You then set the object vibrating. Do you have enough information to find its period? Explain your answer and state whatever you can about its period. 4} Activity 5: Check for Understanding {5 mine) Student Engagement (SE) Effective Questioning Show that the equation or = J; doea give the appropriate units for velocity. 4) Activity 5: Check for Understanding (5 mins) Student Engagement (SE) Effective Questioning Why is a water tower generally placed on top of a hill? if the hill is 50 m high, can it supply water to the top floor of a 100-m tall office building? If not, how does water get to that floor?Activity 5: Check for Understanding (5 mins) Student Engagement (SE) Effective Questioning Two strings A and B are given. The length of A is twice that of B. The total mass of A is one-third that of B. If the tension in wire A is one-half that of B and the fundamental frequency of A is 400 Hz, what is the fundamental frequency of string B