Acar traveling at 39 m/s starts to decelerate steadily. it comes to a complete stop in 9 seconds. what is its acceleration?

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 =

The least penetrating form of radiation is