What is Wsafe, the largest weight of the load that is safe to lift regardless of the angle of the crane's arm

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.

If jason ii needs 15 kw of power at 300 volts to operate, what amperage of current must flow through the cable?

What type of graph used to show how a part of something relates to the whole