Balança comercial e um termo económico que define a diferença entre as exportapoes emportapes de um pais. Abrange todos os produtos, bens
os dos comprados As colonias tinham um papel unico
esempenhar, no sentido de garantir as suas metrópoles os meios de obterem
uma balança comercial favorável nas trocas com outros paises. No imagem
our escreva o que cada uma destas balanças representa e marque qual
delas representa os interesses das metropoles.​

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.

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.