Victoria has a crate of vegetables that weighs 100 n. she exerts a force of 100 n to lift the crate with a pulley. what's the mechanical advantage in the situation? less than one, equal to one, equal to zero, more than one.

Ahypothetical metal has an orthorhombic unit cell for which the a, b, and c lattice parameters are 0.413 nm, 0.665 nm, and 0.876 nm, respectively. (a) if there are 8 atoms per unit cell and the atomic packing factor is 0.536, determine the atomic radius (in nm). (b) if the density is 3.99 g/cm3, calculate the metal's atomic weight (in g/mol).