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Consider a square of side 66 cm. Let one corner, point P, be charge-free, while the other three of the four corners have point charges at them. The corner opposite to (and most distant from) point P has charge Q = 69 nanocoulomb. The two corners nearer to P have charges +5Q and -4Q, respectively. Assuming that the potential V = 0 at a great distance, what is the potential (in volts) at point P?
A converging lens of focal length 0.25 m forms a virtual image of an object, What is the distance between the object and the lens
An archer puts a 0.34 kg arrow to the bowstring. An average force of 209 N is exerted to draw the string back 1.3 m. Unless otherwise directed, assume that air resistance is negligible. plan energy bar graphs to solve the problem.
The position of a particle is given in cm by x = (7) cos 4pt, where t is in seconds. Find the maximum acceleration of the particle
A 0.20 kg mass resting on a frictionless surface is attached to a solid wall by means of a spring with and elastic force constant k of 5.0 N/m. calculate the maximum velocity experienced by the mass
You exert a force of 21 N on the head of a thumbtack. The head of the thumbtack has a radius of 5 mm. What is the pressure on your thumb
the nose of an ultralight plane is pointed south and its airspeed indicator shows 32 . the plane is in a 14 wind
The coefficient of friction between a certain brass block and a large revolving turntable is μ = 0.24. What is the period of rotation of the turntable
two charges a and b are fixed in place at different distances from a certain spot. at this spot the potentials due to
q1. a goldfish in a spherical fish bowl of radius r is at the level of the center c of the bowl and at distance l r2.8
The same device can act as both an air conditioner and a heat pump (after all, they do the same thing), what is the coefficient of performance of the device acting as a heat pump
a 43.0 kg ballet dancer stands on her toes during a performance with four square inches 26.0 cm2 in contact with the
A baseball is thrown horizontally from from a height of 44.10 mabove ground with a speed of 33.5 m/s. Where is the ballafter 3.00 s have elapsed?
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