In a chemical reaction, the mass of the reactants is 13,3 grams. Which of the following could represent the mass of the products?

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =