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A +6.50-µC point charge is moving at a constant 8.50×106m/s in the+y-direction, relative to a reference frame. At the instant when the point charge is at the origin of this reference frame, what is the magnetic-field vectorB? it produces at the following points.
A ray of light in air makes an angle of incidence of 30.2 as it enters an unknown liquid. the refracted ray in the fluid meassured to be 22.5. compute the index of refraction of the unknown liquid
A railroad hopper car has a mass of 50000 kg when empty and contains 50000 kg of coal. How fast does the car travel after all the coal is dumped
A student at another university repeats the experiment you did in lab. What is the kinetic energy (in joules) of the target ball just after it is struck
The Venturi tube shown in the figure below may be used as a fluid flowmeter. Find the fluid flow rate in cubic meters per second
A moving 4.50 kg block collides with a horizontal spring whose spring constant is 343 N/m. find the work done by the spring in bringing the block to rest
how long in ns does it take light to travel 1.0 m in vacuum?what distance does light travel in water during the time
a sample of blood is placed in a centrifuge of radius 12.0 cm. the mass of a red blood cell is 3.0 x 10-16 kg and the
The rectangle shown in Figure P3.57 has sides parallel to the x and y axes. Find the perimeter of the rectangle
Two plates of area 7.00×10-3 m2 are separated with a distance of 4.80×10-4 m. If a charge of 3.40×10-8 C is moved from one plate to the other, compute the potential difference (voltage) between the two plates. Suppose that the separation distance is ..
a snowball rolls off a barn roof that slopes downward at an angle of 40.0 degrees. the edge of the roof is 14.0 meters
A car is hauling a 92 kilogram trailer, to which it is connected by a spring. The spring constant is 2300 N/m. The car accelerates with an acceleration of 0.30 m/s2. Obtain how much the spring stenches
Avoid the weight of the bat, since it is so much less than the force of the bat. Select the direction of the incoming ball as positive direction.
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