Which of the following is not an example of projectile motion?

a
a bowling ball being rolled
b
a golf ball being hit
c
a baseball being thrown
d
a football being kicked

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

What is created when solids, liquids, an gases mix with one another

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