In a laboratory experiment the time it takes a marble to fall from a table to the floor is recorded with a stopwatch. the results are 0.38 seconds, 0.37 seconds and 0.39 seconds respectively. most students in the lab believe that these times are statistically the same, within experimental error. what would be a good method to confirm the results?

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

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In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.