A material is said to be ductile if it can be stretched thin when tensile stress is administered. Such a material can be stretched into a wire.
This is different from malleability which describes a material that can bend or alter shape using compressive force e.g. hammering , rather than tensile stress.
Tensile stress is a type of force or stress that alters the length of a material in the same direction as the force being applied.
The opposite of ductile is brittle. Brittle materials can break when subjected too much tensile stress.
Internal energy of the system changes by ΔE = 178 J.
Heat given to the system = Q = +658 J.
According to the first law of thermodynamics,
ΔE = Q + W
178 = 658 + W
∴ W = 178-658 = -480 J
Minus sign indicates that work is done by the system.
An ocean current<span> is any more or less permanent or continuous, directed movement of </span>ocean<span> water that flows in one of the Earth's </span>oceans<span>. The </span>currents<span> are generated from the forces acting upon the water like the earth's rotation, the wind, the temperature and salinity differences and the gravitation of the moon.
Hope that helps!</span>
Rougher surfaces have more friction between them