Englishfor English speakers
acceleration
Noun
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Acceleration is a change in speed.
As the plane took off, the acceleration pressed her into her seat.
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Acceleration is by how much a speed or velocity goes up.
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derivative for velocity,has formula matha=\lim_{\Delta x \to 0}\frac{\Delta v}{\Delta t}/math .
coil
Noun
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A coil is a long object in circular piles "wound continuously round one point" (Oxford Illustrated Dictionary).
s are usually stored as coils.
coil
Verb
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If you coil something, you wind it cylindrically or spirally around a common center.
The machine coils the wire at a very high speed.