abelxoconda
31.01.2020 •
Physics
Making reference to one of the following smart materials, describe what effects post-production will have on their properties and behaviour in service:
piezoelectric crystal
magnetorheological
applied force
electric fields
magnetic fields
temperature change
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Ответ:
X times X = X^2
-2 times X = -2X ( add this to 4X to equal 2X)
4 times X = 4X
-2 times 4 = -8
X^2 + 2X -8
To solve when equation = 0
X = +2 or -4