Recent content by foreignfishes

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    Potential difference to bring a proton to rest

    Thank you so much! I didn't even think of that. I got the answer.
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    Potential difference to bring a proton to rest

    Homework Statement A proton has an initial speed of 3.5×10^5 . What potential difference is required to reduce the initial speed of the proton by a factor of 2? Homework Equations KE=.5*m*v^2 EPE=q*V The Attempt at a Solution I did KE=.5(1.67x10^-27)(3.5x10^5/2)^2 and then divided...
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    How can I find the tension in a rope at equilibrium point on a high wire?

    Homework Statement Arlene is to walk across a "high wire" strung horizontally between two buildings 14.0m apart. The sag in the rope when she is at the midpoint is 10.0 degrees. If her mass is 52.0kg , what is the tension in the rope at this point?Homework Equations Fnet=ma a=0 so fnet=0 The...