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Three identical point charges each of chargeq are located at the vertices of an equilateral triangle as in the figure shown below. The distance from the center of the triangle to each vertex isa.
(a) Show that the electric field at the center of the triangle is zero. (Submit a file with a maximum size of 1 MB.)
A public transportation bus makes the position-time graph over a 5.00 hour interval shown below. What is the average velocity (magnitude and direction) of the bus
A 5.70-kg ball is dropped from a height of 12.0m above one end of a uniform bar that pivots at its center. The bar has mass 6.00kg and is 4.80m in length. At the other end of the bar sits another 5.10-kg ball, unattached to the bar. The dropped ball ..
a proton is released from rest inside a region of constant uniform electric field e1 pointing due north. 22.3 seconds
A uniform 270N ladder rests against a perfectly smooth wall, making a 40.0? angle with the wall. What is the friction force on the ladder at the floor
A steel wire of mass 0.400kg and length 0.640m supports a 102 kg block. The wire is struck exactly at its midpoint causing a small displacement. How long does it take the peak of this displacement to reach the top of the wire.
Two tiny conducting spheres are identical and carry charges of -20.7C and +62.9C. They are separated by a distance of 2.81 cm. (a) what is the magnitude of the force that each sphere experiences?
A boats's motor can allow it to travel at speed 2V. The boat is aimed with a heading of 180 degrees. The river is X metes wide. The river flows at speed V at 270 degrees.
Consider two point particles that have charge +e, are at rest, and are separated by 4.10 x 10-15 meter. Find how much work was required to bring them together from a very large separation distance
In a blade with an airfoil profile the total aerodynamic force acting on the blade when wind speed is 25 ft /sec is 50 lb, find the torque generated in the shaft
A heat engine does 502.23 J of work per cycle while exhausting 94.69 J of waste heat. What is the engine's thermal efficiency in percent
A 5.6cm diameter horizontal pipe gradually narrows to 4.6cm . When water flows through this pipe at a certain rate, What is the volume rate of flow
Flower Angels operates a flower farm in the Southern Highland specialising in rare breeds of David Austin roses. On Monday the company received, by post, an order from a regular customer, a florist shop in the Sydney CBD, requesting that a specifi..
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