Based on the reading in “Heating Up” why is 30 ppm so significant? 10. From the Reading in “Heating Up” who or what is responsible for the majority of CO2 being produced

The gravitational attraction between two objects will if one object acquires more mass .

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

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?