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woleraymond

  • 2 years ago

A tiny ball of mass 0.6g is suspended from a rigid support with a piece of thread in a horizontal electric field of intensity 700N/C. The ball is in equilibrium when the thread is inclined at an angle of 20degrees to the vertical.WHat are the magnitude and the sign of the charge on the ball? take g = 9.8m/s^2

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  1. Algebraic!
    • 2 years ago
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    |dw:1348625075303:dw|

  2. Algebraic!
    • 2 years ago
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    |dw:1348625261242:dw|

  3. woleraymond
    • 2 years ago
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    @Algebraic! how did u map out the Tsin20 as qE(F) why not the other way around?

  4. Algebraic!
    • 2 years ago
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    you mean qE = Tcos20 ? ... not sure what you're asking..

  5. Algebraic!
    • 2 years ago
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    |dw:1348689801314:dw|

  6. woleraymond
    • 2 years ago
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    i got it now ..thanks

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