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A particle having charge q = +2.50 µC andmass m = 0.0100 kg is connected to a string that isL = 1.20 m long and is tiedto the pivot point P. The particle, string, and pivotpoint all lie on a frictionless horizontal table. The particle isreleased from rest when the string makes an angle θ= 60.0° with a uniform electric field of magnitude E =340 V/m. Determine the speed of the particle when the string is parallel to the electric field (pointa in the figure).
A 7.05 10-3-kg plastic ball with a charge -0.156 µC is suspended from a ceiling with an insulating thread such that the ball stays between the plates of the capacitor. What is the magnitude of the electric field between the plates
Assume 3 mol of neon (an ideal monatomic gas) at STP is compressed slowly and isothermally to 0.25 the original volume. The gas is then allowed to expand quickly and adiabatically back to its original volume.
Two people carry a heavy electric motor by placing it on a light board 1.50{\rm m} long. One person lifts at one end with a force of 370{\rm N} , What is the weight of the motor
A current of 15.0 mA is maintained in a single circular loop of 2.40 m circumference. A magnetic field of 0.870 T is directed parallel to the plane of the loop. Calculate the magnetic moment of the loop
The tungsten filament of a certain 100 W light bulb radiates 2.50 W of light. (The other 97.5 W is carried away by convection and conduction.), Find the filament's temperature
A ray of light passing through air is incident on a piece of quartz (n=1.46) at an angle of 25 degrees. Calculate the deviation d of the ray as it emerges back into the air
A wire 1 meter long and has a mass of.3kg. it is streached was a tension of 3.4N. What is the speed of any wave sent down the wire
Light strikes a sodium surface, causing photoelectric emission. The stopping potential for the ejected electrons is 3.2 V, What is the wavelength of the incident light
A commonly used method of fastening one part to another part is called "shrink fitting." By how many Celsius degrees should the rod be cooled
The windshield of a speeding car hits a hovering insect. Consider the time interval from just before the car hits the insect to just after the impact. Which of the following are right.
Europa, one of the moons of Jupiter, was discovered by Galileo in 1610. Europa has a circular orbit of radius 6.708 105 km and period 3.551 days. Find the mass of Jupiter
An industrial laser is used to burn a hole through a piece of metal. The average intensity of the light is S = 1.38 109 W/m2. What is the rms value of each of the following fields in the electromagnetic wave emitted by the laser? (a) the electric fie..
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