Ipush a box with mass 10 kg across a 15 m room. if i apply a force of 20n to do this how much work is being done on the box?

Arock collection comes from which part of earth?

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.

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer