Question: (10)(a) How much work does an elevator motor do to lift a 1394.0 kg elevator a height of 69.3 m? Submit Answer Submission not graded.

(10)(a) How much work does an elevator motor do to lift a 1394.0 kg elevator a height of 69.3 m? Submit Answer Submission not graded. Use fewer significant figures. Tries 0/10 Previous Tries (b) How much power must the motor supply to do this in 35.8 s at constant speed? Submit Answer Tries 0/10 (3) A horizontal spring with spring constant 69.3N/m is compressed 49.6cm and used to launch a 7.16kg box across a frictionless, horizontal surface. After the box travels some distance, the surface becomes rough. The coefficient of kinetic friction of the box on the surface is 0.232. How far does the box slide across the rough surface before stopping? Submit Answer Incompatible units. No conversion found between "m/s^2" and the required units. ? Tries 0/10 Previous Tries Submit All

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