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A graphing calculator is recommended. A particle moves according to a law of motion 5 = t), t 32 D, where t is measured in seconds and s in feet. {If an answer does not exist, enter DNE.} r} = sin i\" 2 (h) When is the particle speeding up? (Enter your answer using interval notation.) X When is it slowing down? (Enter your answer using interval notation.) XUse differentials to estimate the amount of paint needed to apply a coat of paint 0.04 cm thick to a hemispherical dome with diameter 60 m. (Round your answer to two decimal places.) m3