Describe the major changes between the two skies

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

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?