The pinion gear A rolls on the gear racks B and C.

If B is moving to the right at 10 ft/s and C is moving to the left at 6 ft/s, determine the angular velocity of the pinion gear and the velocity of its center A. State your answer as a vector and indicate your coordinate system.

Asher cycles 12 miles in 16 hours. what is his speed?

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.

What object a collides with object b and bounces back its final momentum is?