When she hosts a garden party, julie likes to launch bagels to her guests with a spring device that she has devised. she places one of her 215-g bagels against a horizontal spring mounted on her gazebo. the force constant of the spring is 325 n/m, and she compresses it 9 cm. (a) find the work done by julie and the spring when julie launches a bagel. (b) if the released bagel leaves the spring at the spring’s equilibrium position, find the speed of the bagel at that point. (c) if the bagel launcher is 2.20 m above the grass, what is julie’s horizontal range firing 215-g bagels?