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The rod is moving in the +x-direction with a speed of 6.80m/s . The rod is in a uniform magnetic field B: (0.160T)i - (0.300T)j - (0.090T)k What is the magnitude of the emf induced in the rod?
A charged capacitor with C = 630uF is connected in series to an inductor that has L = 0.400H and negligible resistance. At an instant when the current in the inductor is i = 1.40A, the current is i
A helium neon laser emits light that has a wavelength of 632.8 nm. The circular aperature through which the beam emerges has a diameter of 0.800 cm. Estimate the diameter of the beam 20 km from the
calculate the fractional intensity I/IMAX at a point on the screen 4.10mm from the center of the principal maximum.
Assume that the speed of the water in the reservoir is zero and that the water flow is steady. Ignore both air resistance and the height difference between the reservoir and the muzzle.
Ignore the specific heat capacity of the chest and determine the final temperature T of the soda and watermelon.
The plates of a Fabry-Perot interferometer have a reflection coefficient r = 0.99. Calculate the minimum resolving power R and the plate separation that will accomplish the resolution of the two com
A positron (e+) in a thin wire can be considered as if in a 1- dimensional infinite potential well. Consider L = 0.005 mm length of the wire; (a) Determine the ground-state energy of a positron in s
What is Bragg Scattering angle ? (first order)for an electrons beam scattered / diffracted from the surface of Ni crystal with atomic- planes spacing D= 0.215 nm and the kinetic energy of the electr
A pinball (solid sphere of mass = 0.2 kg, outer radius = 0.1 m) is cocked back 0.8 m on a spring (k= 50 N/m), and fired onto the pinball machine surface, which is tilted. a.) How much energy is stor
A 137Cs source has an activity of 700 (micro)Ci. A gamma photon with energy 0.662 MeV is emitted with a frequency of 0.849 per decay. At a distance of 2 meters from the source, what is (A) the expos
Light of wavelength 7.5x10-7 meter in air is incident normally (perpendicularly) on a double slit. The distance between the slits is 5.9x10-4 meter, and the width of each slit is negligible. Bright an
Construct an energy level diagram consistent with this information and determine the energies of the photons associated with those two additional wavelengths. Label all three possible transitions: E
An object having a mass of 8.0 g and a charge of 10.0 x 10-5 C is placed in a uniform electric field E where Ex = 2.00 x 103 N/C, Ey = -500 N/C, and Ez = 200 N/C. If the object is released from rest
The projection lens in a certain slide projector is a single thin lens. A slide 24.5 mm high is to be projected so that its image fills a screen 1.89 m high. The slide-to-screen distance is 2.98 m.
Calculate the power transferred from a power amplifier to a loudspeaker if the amplifier output voltage is 10 volts and the speaker impedance is 8 ohms.
Calculate the power transferred from the preamplifier to a power amplifier if the voltage is 1.5 volts and the input impedance of the power amplifier is 50,000 ohms.
How is single slit diffraction pattern and intensity affected by the width of the slit, the distance of the slit from the screen, and the wavelength of the light source? Which of these parameters af
You are consulting for an amusement park that wants to build a new "rotor" ride. In order to increase capacity, they would like to build a unit with a 16.9 feet diameter. The rotor should provide a
A 5.5 kg bucket of water is raised from a well by a rope. The acceleration of gravity is 9.81 m/s2 . If the upward acceleration of the bucket is 2.9 m/s2, find the force exerted by the rope on the buc
You have a 7.70 uF capacitor a 1250 resistor who are connected in series to a generator operating at 50 Hz, producing an rms voltage of 208. what is the average power dissipated?
A current path shaped as shown in the figure produces a magnetic field at P, the center of the arc. If the arc subtends an angle of θ = 50.0 ° and the radius of the arc is 0.500 m,
An electron experiences a magnetic force of magnitude 4.60 x10^-15 when moving at an angle of 60.0 degree with respect to a magnetic field of magnitude 3.5x10^-3 T. Find the speed of the electron.
If you hace 10 degree angle and the means time is .52second the initial hight is .042m the long is .426m and the final distance when the object rich the floor is .4970m calculate the maximun hight o
A certain simple pendulum has a period on earth of 1.60 s. what is its period on the surface of Mars , where the acceleration due to gravity is 3.71 m/s2?