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Another laser amplifier gives an output of 5I0 when it receives input intensity I0 tuned to ?0, the centre frequency of the laser transition. When the input radiation istuned to nearby angular frequency ?1, an input intensity of 3I0 is amplified to an output intensity of 7I0.
What is the ratio of the gain-cross sections at the two frequencies?
Find out the angular velocity
Illustrate what is the average emf that is induced in this coil if it is in a region where B=2.0 T upward, and the coil's plane is perpendicular to B?
A copper bar of thermal conductivity 401 W/(m · K) has one end at 104° C and the other end at 33° C. What is the temperature gradient in the bar
Calculate the net torque about the asle of the wheel assuming that a friction torque of .40m*N opposes the motion. determine its angular acceleration and angular speed
A block of weight w = 35.0N sits on a frictionless inclined plane, which makes an angle θ = 29.0° with respect to the horizontal, as shown in the figure. (Figure 1) A force of magnitude F = 17.0N , applied parallel to the incline, is just suff..
A rod of 2.0-m length and a square (2.0 mm ? 2.0 mm) cross section is made of a material with a resistivity of 6.0 ? 10-8 ? ? m. at what rate is heat generated in the rod
A stone is tied to a string (length = 0.727 m) and whirled in a circle at the same constant speed in two different ways. Determine the speed of the stone
Find the magnitude of the acceleration of the particle. What are the x- and y-coordinates of the shell where it explodes,associated to its firing point.
A 20 wood ball hangs from a 1-long wire. The highest tension the wire can withstand without breaking is 600. A 0.90 projectile travelling horizontally hits and embeds itself in the wood ball. What is the largest speed this projectile can have with..
q1. a cooling unit for chilling the water of an aquarium gives specifications of mechanical power of 110 hp and cooling
Consider a rocket launched from Vandenberg AFB, CA (longitude=34.6 degrees) having an initial velocity of 3 km/s in the northerly direction relative to the launch site.
If the initial temperature of the horseshoe is 450 °C, and the initial temperature of the water is 45° C, what is the equilibrium temperature of the system? Presume no heat is exchanged with the surroundings.
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