Aforce of 25 n moves a box a distance of 4 m in five seconds the work done in the box and the power /s use numerals instead of words pl

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

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.

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?