A Rectangular Storage Container with an Open Top Is to Have

question 74

Essay

A rectangular storage container with an open top is to have a volume of 10 The length of its base is twice the width.Material for the base costs $12 per square meter.Material for the sides costs $5 per square meter.Find the cost of materials for the cheapest such container.

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Definitions:

External Circuit

The portion of an electrical circuit that is outside the internal system, connecting it to external devices or other circuits.

Shunt Field

A winding in electrical generators or motors that is connected parallel to the armature, influencing the magnetic field.

Armature

The rotating part of an electric machine, such as a motor or generator, within which voltage is induced by magnetic action.

Magnetic Field

A region around a magnetic material or a moving electric charge within which the force of magnetism acts.