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☆☆☆☆☆by Convection
A wheelbarrow is an example of a class 2 lever as well as a wheel and axle. A wedge is an example of an inclined plane.
by creating two circuit loops
change the direction of force
Domains are aligned.
transistor
magnetic feilds are produced only when current is flowing
focal length
nearsightedness or myopia
The imaginary line that extends straight out from the center of a reflective surface is the optical axis.
it can be projected
Knowledge about atomic nuclei has been used to produce energy.
The Fujita scale determines the strength of the tornado based on the severity of the damage it causes. In the U.S. it has been replaced by the Enhanced Fujita scale.
to decide true or false
The device is called a "variac' and it is a type of transformer. It has a variable voltage ouput.
It can create new problems
a poor thermal conductor
