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A sand mover at a quarry lifts 2,000 kg of sand per minute a vertical distance of 12 m. The sand is initially at rest and is discharged at the top of the sand mover with speed 5.0 m/s into aloading chute. At what minimum rate must power be supplied to thismachine?
a. 6.65 kw
b. 1.13 kw
c. 4.34 kw
d. 524 w
e. 3.92 kw
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