1 point 83. The line of action of Force F = (i - 2j) N passes through the point
whose vector is (-j + k) m. The moment of F about the origin in Nm is
O (2j + j)
(21 + i + k)
(i + i + k)
(i + 2) + k)

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 is a good example of instantaneous speed

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?