A tennis ball is hit with an initial velocity of 15 m/s at an angle of 40°. What is the horizontal distance of the ball after 2 seconds?
(round to the nearest meter)

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.

In what direction does an applied force move an object

How are positive ions different from neutral atoms