Suggested prelab questions are in bold These will help with

Suggested prelab questions are in bold. These will help with conceptual under- standing of the laboratory experiments. Estimation of Uncertainty: You have the following distribution of measured values: Estimate the uncertainty using the 2/3 estimate. Estimate the mean and uncertainty of the following group of values: In a radioactive decay you get 16 counts. What is the absolute uncertainty of the number of counts? What is the relative uncertainty? In a radioactive decay you get 1600 counts. What is the absolute uncertainty of the number of counts? What is the relative uncertainty? How many counts should you get so that the relative uncertainty is \\7t or less? Significant digits: How many significant digits has l = 0.0254 m? Write t = 1.25578 plusminus0.1247s with two significant digits (in the uncertainty) Propagation of Uncertainty: For a pendulum with Il= 1.0 plusminus 0.1m von 2.0plusminus 0.2s. What is the value of the earths acceleration g?

Solution

Mean = (1.6+1.3+1.7+1.4)/4=6/4=1.5.

t=[1.13,1.38].