3) How far will 20 N of force stretch a spring with a spring constant of 140 N/m? How far will a 50N Force stretch the same spring?

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

What was the approximate temperature of the universe at an age of 1015 s?

This lab will not "work" for some people - they won't be able to collect a clump of dna for their necklace. explain how it is possible to have actually extracted dna from your cheek cells, yet at the end of the lab procedures, it is not obviously visible.