Two blocks connected by a rope of negligible mass are being dragged by a force at a 26° angle above horizontal (see figure below). suppose f = 89.0 n, m1 = 14.0 kg, m2 = 20.0 kg, and the coefficient of kinetic friction between each block and the surface is 0.200.

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.

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

How to tell if a molecule is polar or nonpolar with electronegativity