Which two factors are used to calculate kinetic energy? A. The velocity of an object
B. The mass of an object
c. The height of an object
D. The chernical formula for the object
I E. The density of an object

What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green

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

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final