At a given instant the 10-lb block a is moving downward with a speed of 6 ft/s. determine its speed 2 s later. block b has a weight of 4 lb, and the coefficient of kinetic friction between it and the horizontal plane is μk = 0.2. neglect the mass of the cord and pulleys.

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?