Aconveyor belt at a quarry lifts 2,000 kg of sand per minute up a vertical distance of 12 meters. the sand is initially at rest, then moves at a speed of 0.20 m/s along the conveyor belt. what is the instantaneous power generated by this machine?

524 w

1.3 kw

3.9 kw

6.7 kw

Aand b antarctica is a north pole.  field lines enter earth near the north pole.the magnetic pole near antarctica is a north pole.compasses point toward a magnetic pole that is a north pole.field lines circle earth from east to west.a compass can lead a hiker to the geographic north pole.