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A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 665 nm. Determine the angle that locates the first dark fringe when the width of the slit is each of the following.
(a) 1.40 multiply.gif 10-4 m
(b) 1.40 multiply.gif 10-6 m
an electron with velocity v 1x106 ms is sent between the plates of a capacitor where the electric field is e500 vm. if
A 0.150 kg ball is going around in a vertical circle of radius R = 0.300 m at constant speed v. The ball is attached to a mass less ideal string which is attached to a fixed pivot point. If the tension F in the string is greater than 125 N, the st..
To verify her suspicion that a rock specimen is hollow, a geologist weighs the specimen in air and in water. What fraction of the specimen's apparent volume is solid
A certain lightbulb has a tungsten filament with a resistance of 18.0 when cold and 138 when hot. Find the temperature of the hot filament
Rubidium atoms are cooled to 0.22 uK in an atom trap. What is their de Broglie wavelength
A wheel of radius 30 cm is rotating at a rate of 2.0 revolutions every 0.080 s. What is the wheel's frequency of rotation
The angular velocity of a disc is given by: ? = 24t - 6t^2. At what time is the torque acting on the disc zero
Suppose that the dipole moment associated with an iron atom of an iron bar is 2.4 x 10-23 J/T. What is the dipole moment of the bar
A high-voltage transmission line with a resistance of 0.34 omegacap.gif/km carries a current of 960 A. What is the power loss due to resistance in the line
A spherical metallic Christmas tree ornament has a diameter of 6.41 cm. If Saint Nicholas is by the fireplace, 1.37 m away, where will he see his reflection in the ornament
If a mechanical wave has a wavelength of 2.80 meters and its period is 4.5 seconds, at what speed does the wave travel
A wooden rod of negligible mass and length 82.2 is pivoted about a horizontal axis through its center. A white rat with mass 0.440 clings to one end of the stick, and the mouse with mass 0.220 clings to the other end. The system is released from rest..
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