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The figure shows three point charges of magnitude +2.0 μC,+3.0 μC, +4.0 μC are located at the corners of a triangle. The resultant force acting on the +4.0 μC charge is given by
1) 3.9 N at 97° with the +x-axis.
2) 2.7 N at 97° with the +x-axis.
3) 1.8 N at 97° with the +y-axis.
4) 3.9 N at 97° with the +y-axis.
The diagram is an equilateral triangle by sides of 20 cm, and the+4.0 at the top of the triangle.
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A stopwatch is used to measure how long it takes a sprinter to run 100 meters. This stopwatch measures time intervals to hundredths of seconds. Using the stopwatch the timekeeper measures the sprinter’s time as9.88 seconds. The timekeeper then writes..
A man is in a chair that is attached with a rope that goes over amass less, frictionless pulley and back down to the man's hand. Combined mass is 104.0 kg. With what force should he pull the pulley in order to rise with a constant velocity?
Louise spikes a volleyball during a game. At the instant the volleyball leaves her hand, How long will it take for the ball to strike the floor
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