An olympic diver had a kinetic energy of 1500 j just prior to hitting the water. if her mass is 50 kg, then what is her speed

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

What is a subatomic particle with a negative charge and very little mass?

Photons with the highest energy have the longest period