An experiment subject only to random fluctuation within a normal distribution collects the following set of unitless numerical values: 15.8, 17.8, 19.5, 20.0, 14.7, 16.6, 16.8, 19.4, 18.3 A number of hypotheses are put forward for the theoretical value of what is measured here. Select all of the theoretical values given below that can be ruled out by our usual 1-sigma uncertainty criterion. 15.6 15.9 19.5 V 19.7

Use the approximate values from this table to solve the problem. How many heartbeats are there in a lifetime?

If the radius of a calcium ion is 0.27 nm, how much energy does it take to singly ionize it? Give your answer in electron-volts (eV) with precision 0.1 eV. Give your answer to 2 significant digits.

The figure, shows the dot and whisker plot of measured value and uncertainties from Group A and Group B for a same experiment assigned for both groups. Which group did better job on collecting data provided they are using same equipment? Uncertainty bars of Group A and Group B 1 1.2 1.4 1.6 1.8 Group B, because the uncertainty on their data is largest Group A, because the uncertainty on their data is largest Group A, because the uncertainty on their data is smallest Group B, because the uncertainty on their data is smallest More information is needed to compare quality of the data

Find the uncertainty in kinetic energy. Kinetic energy depends on mass and velocity according to this function E(m,v) = 1/2 m v2. Your measured mass and velocity have the following uncertainties Sm = 0.38 kg and Sv = 0.1 m/s. What is is the uncertainty in energy, SE , if the measured mass, m = 3.1 kg and the measured velocity, v = -7.52 m/s? Units are not needed in your answer.

What is the wavelength of a photon emitted when an electron jumps from the n=3 to the n=2 energy levels of a lithium atom (Z=3)? Express your answer in nanometers and keep three significant digits.