Three identical resistors are connected in parallel
Three identical resistors are connected in parallel. The equivalent resistance increases by 670 when one resistor is removed and connected in series with the remaining two, which are still in parallel. Find the resistance of each resistor.
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A small sphere that carries a charge q is whirled in a circle at the end of an insulating string. The angular frequency of rotation is ω. What average current does this rotating charge represent? (Use omega for ω and q as necessary.)
A computer monitor accelerates electrons and directs them to the screen in order to create an image. If the accelerating plates are 1.30 apart, and have a potential difference of 2.15×10^4 V, what is the magnitude of the uniform electric fie
The potential difference between the wire and the cylinder is 1.00 kV. (a) What is the direction of the electric field inside the tube?
In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities.
A 5 m plank of mass 100 kilograms rests on top of a building with 2 meters of plank extended over the edge of the building. How far can a 50 kg person venture past edge of building on plank before the plank just begins to tip?
The moment generating function of a random variable X is given by Mx(t)= 1/4+(1/8)e^(t)+(3/8)e^(2t)+(1/4)e^(4t) . Determine the probability that X lies between -1 and 3
An object of mass m attached to a spring of force constant k oscillates with simple harmonic motion. The maximum displacement from equilibrium is A and the total mechanical energy of the system is E.
The acceleration of gravity is 9.81 m/s2 . Find the magnitude of the acceleration of the block-wedge system.
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