What is the speed of the wave described by y(x, t)=Acos(x^2 + 2Bxt +B^2 t^2) A) 2Bx
B) B2
C) B/2
D) B

1-10. need . physics. circular motion. 35 points

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.

How many atoms of nitrogen are in the chemical formula ni(w on