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Given the electric field
E(x,y,z) = ( x/(x^2+y^2), y/(x^2+y^2), 0)
Determine the distribution of charge which is responsible for creating this electric field. Hint: consider a Gaussian surface which is a cylinder of radius R and height h centered on the z axis.
What is the apparent weight of a 75 kg astronaut.
Two objects attract each other gravitationally with a force of 2.5 * 10^-10N when they are .25m apart. There total mass is 5.00kg. Find their individual masses
Why must a thermom be calibrated? You have a glass bulb thermom with no markings on it, and a second one marked in degrees Celsius. Describe how you would calibrate the unmarked thermom.
What would be the potential difference VC - VB across the thin resistor if the battery emf is 4.00 volts? Suppose that the electric field in the thick wires is very small (so that the potential differences along the thick wires are negligible)
If no, then what will happen if 30 kilocalories of heat is added to the water? Give a numerical result as part of your answer.
An infinitely long wire is formed as in the diagram on your assignment. It is formed so that it has a circular portion of R = 50cm and the straight portion is located at a distance r from the center of the circular portion. Determine r (in cm) suc..
A 3.83m -long coil containing 225 loops is wound on an iron core (average ?=1850?0) along with a second coil of 115 loops, Determine the mutual inductance M. (units of H)
A square plate of copper with 47.0 cm sides has no net charge and is placed in a region of uniform electric field of 79.0 kN/C directed perpendicularly to the plate. (a) Find the charge density of each face of the plate. (b) Find the total charge ..
What is the coefficient of kinetic friction between the table and floor.
rotates to provide an "artificial gravity" of 3.10 m/s2 for persons who walk around on the inner wall of the outer rim. Find out the rate of the wheel's rotation in revolutions per minute that will produce this effect.
A capacitor is charged to a potential of 12.0 V and is then connected to a voltmeter having an internal resistance of 3.10M, What is the time constant of the circuit
A second fragment, who's mass is 3.4 kg, moves away from the point of explosion with a speed of 418 m/s along the negative x axis. What is the speed of the third fragment? Ignore effects due to gravity.
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