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Three charges are at seperate corners of a square of edge length of 5cm. The two charges at opposite corners are positive with magnitude +10nc, and the other charge is negative with magnitude of -50nC.
A.) Find the electric field at the remaining (upper right corner).(Assume the +x axis is directed to the right and the +y axis is directed upward.)
B.) Find the force on a -50 nC particle at the remaining remaining (upper right) corner.
C.) With all four charges in play, is there a point where the electric field is zero.
A sample of gold of volume 2.00*10^-5 m^3 is available to make a wire. If the length of the wire is to be 50.0 cm and all the gold is used, what will be resistance of the wire? (Gold has a resistivity of 2.44*10^-8Ωm and a temperature coefficient of ..
A Carnot refrigerator operating between -10.0 ?Cand + 10.0 ?C extracts heat from the cold reservoir at the rate 100J/s. What is the rate at which heat is exhausted to the hot side
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In 1915, Henry Sincosky of Philadelphia suspended himself from a rafter by gripping the rafter with the thumb of each hand on one side and the fingers on the opposite side. Sincosky’s mass was 79 kg. If the coefficient of static friction between hand..
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A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends on the time t according to the relation I = (0.703 A) sin [(257 rad/s)t]. Determine the resistance of the bulb's filament
A 7.80-g bullet moving at 480 m/s penetrates a tree trunk to a depth of 4.5 cm. find the average frictional force that stops the bullet
a .25 x .25 square specimen of a material of yield strength 50000 psi is loaded to this yield point and released. the
A car with a total mass of 1.57 103 kg has wheels of radius 32.5 cm and moment of inertia 0.875 kg · m2. Find the car's rotational energy when the car is moving at a speed of 21.0 m/s
In a crystal an electron is confined to a cubical region of length 0.5nm on a side. estimate the minimum allowed KE of the electron
A simple harmonic oscillator takes 12 s to undergo 5 complete vibrations. Find (a) the period of its motion, (b) the frequency in hertz and (c) the angular frequency in radians per second.
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