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Hi, I do not understand how to do this physics problem. Please explain the method and...

Hi, I do not understand how to do this physics problem. Please explain the method and help me understand the concept.

Question:
The picture on a television screen is created by a beam of electrons that sweep across the screen 550 times in 1/30 s. If the screen is 50 cm wide, what is the speed of the beam of electrons sweeping across the screen?

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2O S 16 s oo distance tave Speed: distance tim e 6svkindly give rating

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