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A hydrogen atom in a state having a binding energy (the energy required to remove an electron) of 0.378 eV makes a transition to a state with an excitation energy (the difference between the energy of the state and that of the ground state) of 12.750 eV. What is the energy of the photon emitted as a result of the transition? Answer in ev?
Two astronauts of equal mass 70 kg are holding on to opposite ends of a straight rope in space. The length of the rope between them is 20 meters. What is the new angular velocity of the two astronauts
A brick is initially 10.74 cm high and an aluminum can is initially 10.75 cm high. By how much must their temperatures be raised in order for the brick
a person 1.8m tall stands 0.74m from a reflecting globe in a garden. a. if the diameter of the globe is 18cm where is
Question: For all generators: Eg = 1\"\"0°, χ1 = j0.25 For all transformers: χ1 = j0.75 [A] Write the Y and Z matrices. B] Write the model equation. [C] For each bus, find V, ρ and Q.
The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3. Explain how high does the top of the ice block float above the water level?
a 30 year old women takes a trip on a rockect leaving her 30 year old brother behind. She travels at a speed of .8c and is gone for 20 years, how many years older/younger is she than her brother
Suppose you form a dipole from two point charges (with a magnitude of charge, q). the postive charge is located at the point x=y=0, z=d/2. and the negative charge is located at x=y=0, z=-d/2. determine the magnitude of the electric field along the..
A device for training astronauts and jet fighter pilots is designed to rotate a trainee in a horizontal circle of radius 12.0. how fast is she rotating
A 4.60-g lead bullet at 34.0°C is fired at a speed of 260 m/s into a large block of ice at 0°C, in which it becomes embedded. What quantity of ice melts
Wile E. Coyote and the Roadrunner are fictional cartoon characters. The premise of the cartoon is that Wile E. Coyote unsuccessfully tries to catch the very fast and clever Roadrunner. What is the momentum of the second wagon after the collision
In a simple model of the hydrogen atom, the electron moves in a circular orbit of radius 0.053 nm around a stationary proton. How many revolutions per second does the electron make
A block with mass m = 6.1 kg is attached to two springs with spring constants kleft = 30.0 N/m and kright = 48.0 N/m. The block is pulled a distance x = 0.28 m to the left of its equilibrium position and released from rest.
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