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One day while Sir Isaac Newton was contemplating gravity underneath an apple tree. An apple of...

One day while Sir Isaac Newton was contemplating gravity underneath an apple tree. An apple of mass 0.12 kg located 2.5 m above the ground and directly above his head happened to fall. *Note: Show all of your work/calculations

(a) If during the fall the apple lost 1.8 J of potential energy before hitting Newton's head, how high above the ground was the top of his head located?

(b) What was the speed of the apple just before hitting Newton's head?

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