Tessa is trying to identify five rocks she found In her backyard. She records the density, odor, color, and shape for all five rocks. What property of the rocks is Tessa observing?

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?

In an experiment, how can i change human errors? be specific.