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1. find the electric field a distance z above the center of a flat circular disk of radius R that carries a uniform surface charge sigma. what does your formula give in the limit R-> infiniti?
2. use gauss's law to find the electric field inside and outside a spehrical shell of radius R that carries a uniform surface charge of density sigma.
Explain how much work does the spring do on the block if the spring is stretched from relaxed length by 15.1 mm as the block is moved?
A particle moves on the x axis from x=0 to x=3. A force of magnitude F(x) = 3x3 + 4x acts on the particle. Calculate the work done by the force
Is it correct to say the difference in the patterns produced by monochromatic and white light is caused by the fact that monochromatic light waves interfere with each other when they pass through a diffraction grating, while the rays of white light d..
A 120-V motor has mechanical power output of 2.70 hp. It is 94.0% efficient in converting power that it takes in by electrical transmission into mechanical power. Find the current in the motor
A 4.0 kg mess kit sliding on a frictionless surface explodes into two 2.0 kg parts, What is the original speed of the mess kit
In a Millikan oil-drop experiment (Section 22-8), a uniform electric field of 3.91 x 105 N/C is maintained in the region between two plates separated by 6.80 cm
Assume the intensity of solar radiation incident on the cloud tops of the Earth is 1 518 W/m2. (a) Taking the average Earth–Sun separation to be 1.496 1011 m, calculate the total power radiated by the Sun. W (b) Determine the maximum value of the ele..
The magnetic flux through the closed loop placed horizontally increases according to the relation ?(B)=1+6t2+7t3, What is the magnitude of the emf induced in the loop
Is the center of the mass of the pendulum-ball system at the center of the ball? If not, where and how is the center of mass located
a spherical ball hanging on a string on a smooth, frictionless wall. The mass of the ball is m, its radius is R, and the length of the spring is L. Find the normal force between the ball and the wall
A long wire is known to have a radius greater than 4.0 mm and to carry a current that is uniformly distributed over its cross section. what is the radius of the wire
Find out the dividends per share for preferred and common stock for each year. Prepare a brief memo (no more than 120 words) giving the arguments for and against offering this preferred stock. In the memo also briefly mention other methods of obtai..
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