paper. It shoul a. b. our obsery ysis of your ata, On the axes to the right draw a graph of the period of a pendulum as a function of its length. LENGTH (m) Explain the shape of the graph you have drawn. Is it linear or curved? Why? Figure 11-2 C. you If you wanted to double the period of a pendulum, what change would make to its length? Explain using two points on the line you have drawn (L₁, T) and (L₂, T₂) where T₂ is 2 x T₁ and the required change in length is accurately represented. PERIOD (s)

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Estimate the stiffness of the spring, kk (in N/m) in a child’s pogo stick if the child has a mass of 27 kg and bounces once every 2.6 seconds. Type your answer to within one decimal place. Use a period (full stop) for a decimal place, eg. 500.0 - Do not use a comma or input your answer in some form of scientific notation. Do NOT include units in your answer.

Mass vs. Period of Ocillation 5. What general pattern is shown on this part of the graph? 2 6. mass (kg) ..... Model 1 --Model 2 Your answer: OPeriod increases when mass increases. O Period decreases when mass increases. O The two variables seem to be independent of each other. 2. 1. (s) pouad

Item 13 Sunspot Observations Sunspots vary in number as a function of time, exhibiting an approximately 11-year cycle. Galileo made the first European observations of sunspots in 1610, and daily observations were begun in Zurich in 1749. At the present time we are well into the 23rd observed cycle. Part A What is the frequency of the sunspot cycle? Give your answer in Hz. Express your answer using two significant figures. ΠΙΑΣΦ f = Submit Provide Feedback Request Answer ? Hz