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lesya692 [45]
3 years ago
8

The distance from the center of the lens to its principal focus is called the focal length.

Physics
1 answer:
blondinia [14]3 years ago
4 0

Answer:

true

Explanation:

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Find the kinetic energy of a ball of mass 200 grams moving at a speed of 20 m/s​
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4 years ago
Which formula uses mass in the equation?
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D. it can be greater than the atomic number
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