A 3 kg package is sliding to the left at a velocity of 6 m/s. It collides with a second 6 kg package that is sliding to the right at 2 m/s. After the collision the 6 kg package is traveling to the left at 3.33 m/s. How fast and in what direction is the first package traveling?

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?

Explain why electric current cannot exist if a current doesn't have a voltage source.

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.