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Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV.
a) What is the resonant absorption wavelength?
b) What is the spontaneous emission wavelength?
c) What is the stimulated emission wavelength?
d) Explain the differences between the light produced by spontaneous and stimulated emission.
A horse races once around a circular track in a time of 18.0 s, with a speed of 18.0 m/s. Illustrate what is the radius of the track? Give your answer in meters, but do not include units.
An RLC circuit has a resistor of 300 W, a 1.0 µF capacitor, and an inductor of 450 mH connected to an alternate power source with a voltage, calculate the rms current flowing through the circuit
A volleyball player's 3.7 kg arm moves at an average angular velocity of 15 rad/s during execution of a spike. what is the average radius of gyration for the arm during the spike
A pet-store supply truck moves at 25m/s north along a highway. Inside, a dog moves at 1.85m/s at an angle of 35° east of north. What is the velocity of the dog relative to road.
The speed of the fastest-pitched baseball was 45.0 m/s , and the ball's mass was 145g. How many joules of kinetic energy did this ball have
A 1200 kg car moving north at 27 m/s is struck by a 2165 kg car moving east at 11.0 m/s. The cars are stuck together. How fast and in what direction do they move at once after the collision.
In a muonic atom, the electron is replaced by a negatively charged particle called the muon. What is the shortest wavelength of the Lyman series in a muonic hydrogen atom
Take the largest image distance and calculate the focal length of the lens used. image distance = 226 mm object distance =100 mm focal length = ??? How do you find the focal length
The block of mass M slides back along the horizontal surface with a coefficient of kinetic friction ?k and eventually comes to a rest. calculate the total trip time from bullet impact to now
The blood flow speed through an aorta with a radius of 1.00 cm is 0.365 m/s, If aorta constricts to a radius of 0.800 cm, how much does blood flow speed increase
A field mouse trying to escape a hawk runs east for 6.0m , darts southeast for 3.9m, What is the magnitude of the net displacement of the mouse
A rectangular loop of wire with width 0.4 cm and length 0.6 cm is oriented with the normal to the face of the loop, Find the magnetic flux through the loop
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