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Three charges (q1 = 7.6 ?C, q2 = -4.7 ?C, and q3 = 1.1?C) are located at the vertices of an equilateral triangle with side d = 6.1 cm. q1 is on the bottom left, q2 is on the bottom right, and q3 is at the top. A charge q4 = 1.1 ?C is now added. (This is below q1 and q2 so that q1, q2, and q4 create another equilateral triangle where the point (q4) is at the bottom. So, basically, there are two equilateral triangles that form a diamond--q1 and q2 on the left and right, q3 as the top point, q4 as the bottom point). 1) What is F2y, the y-component of the new net force on q2. I got this one, the answer is 0 2) What is F1x, the x-component of the new net force on q1. I am stuck on the last one.
A jet makes a landing traveling due east with a speed of 115 m/s. If the jet comes to rest in 13.0s, what are the magnitude and direction of its average acceleration.
A shop sign weighing 245-N is supported by a uniform 155-N bean. Find out the tension in the guy wire, and the horizontal and vertical forces exerted by the hinge on the bean.
How large does the radius R of the dish have to be to achieve an electric field vector amplitude of 0.1 rm mV/m at the receiver.
How do you establish the value of theta
A pendulum of length 1.5 m is held out to point A. At the vertical position, an overhang effectively cuts the length of the pendulum by an amount equal to 1.09 m. (That is, 1.0 m is no longer free to swing.) How long does this pendulum take for one o..
Find the magnitude and direction of the force on a proton at x = -3.2 m, y = 0.9 m.
Elucidate the spacing between peaks
The bullet becomes embedded in the block. If the bullet-block system compresses the spring by a highest of 90cm, what was the speed of the bullet at impact with the block.
A 1530 kg car is travelling with the speed of 15.0 m/s. What is the magnitude of the horizontal net force that is required to bring the car to the halt in a distance of 40.00 m.
The sport with the fastest moving ball is jai alai, where measured speeds have reached 303km/h. If a professional jai alai player faces a ball at that speed and involuntarily blinks, he blacks out the scene for 100ms. How far does ball move throughou..
An inventor claims to have devised a cyclic engine which exchanges heat with reservoirs at 300 K and 540 K, and which can produce 450 J of work per 1000 J of heat extracted from the hot reservoir. Is his claim feasible.
A fire in an enclosure has reached flashover, & the gas temperature is assumed to be uniform at 1000oC. The enclosure has an opening 3 m wide & 2 m high. Find the position of the neutral layer, measured from the bottom of the opening.
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