A block is pulled by a rope at a constant speed 60 cm up an incline that makes a 30∞ angle with the floor. The tension in the rope is 4 N and is parallel to the incline. If the block has a mass of 3 kg, how much work is done by the pulling force on the block?

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.

The field lines around one end of a bar magnet are shown below based on the diagram, what can you conclude about the pole of the magnet? a.is a south pole because the field hnes spread out from this end b.a north pole because the field lines spread out from this end c.a nouth pole because the field lines enter the magnet at this end d.is a north pole because the field lines enter the magnet at this end