In preparation for an electrophoresis procedure, enzymes are added to dna in order to
1.) convert the dna into gel
2.) cut the dna into fragments
3.) change the color of the dna
or 4.) produce longer sections of dna

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At maximum height, kinetic energy is converted in potential energy  formula: at max height, ke = ½ * 0.27kg * (16m/s) ² = 34.56 j  so the remaining pe = (41.70 – 34.56)= 7.14 j = 0.27 kg * 9.8m/s² * h  = (9.8/7.14 * 0.27)so max height h = 5.08 or 5 m 

Ray 2 should cross through the focal point on the right side of the lens