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A projectile is launched with a launch angle of 65° with respect to the horizontal direction and with initial speed 14 m/s.
(A) How do the vertical and horizontal components of its velocity vary with time?
(B) How long does it remain in flight?
(C) For a given launch speed, what launch angle produces the longest time of flight?
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A physics student wants to cool a glass of Diet Cola (mostly water), initially at 27°C, by adding ice initially at -18°C. If there is 250g of Diet Cola in the glass, how much ice must they add so that the final temperature will be 0°C?
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