Explain why the event in the picture takes place

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3

Building glycogen from glucose molecules is an example of