Which of the following is an example of kinetic energy? a) a boy resting on a park bench b) a book sitting on a shelf c) a rubber band stretched as far as it can go d) a swing moving back and forth

Why do electron microscopes have higher resolving power than light microscopes?

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

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