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Two protons are placed at a = 4.69 cm above and below the x axis at x = 0 as shown in the figure. An electron is placed along the x axis a distance b = 10.1 cm from the origin.
a) Determine the magnitude of the electrostatic force on the electron.
b) Determine the direction of the net electrostatic force on the electron (angle with respect to the positive x-axis) r=sqrt(a^2+b^2) converting a and b to meters then shouldnt the answer for a = (kq^2)/r^2
An anchor holding a boat stationary on a river forms a 65 degree angle with the river bottom. The anchor line is 40 meters long. Assume the river has a uniform depth, how deep is the river directly below boat.
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One possibility for a low-pollution automobile is for it to use energy stored in a heavy rotating flywheel. What is the angular velocity of the flywheel when it has a full "energy charge"
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