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1. Calculate the wave number for the longest wavelength transition in the Balmer series of atomic hydrogen. (RH 109677 cm-1)
2. What is the energy in joules, required to shift the electron of the hydrogen atom from the first Bohr orbit to the fifth Bohr orbit and what is the wavelength of the light emitted when the electron returns to the ground state? The ground state electron energy is -2.18 * 10-11 ergs.
Three identical metal spheres of qA=+3.0C qB=-5.0C qC=+6.0C. What is the final charge on each one
If the circular surface of the upper end of the rod is maintained at 290 K, what is the approximate boil-off rate of liquid helium after the lower half has reached 4.20 K
You are given a pendulum composed of a 0.028 kg mass on the end of a 0.47 m long massless string. compute the tension in the string when the mass is at the release point, ? = 48°
Electrons with a speed of 1.3×10^6 m/s pass through a double-slit apparatus. Interference fringes are detected with a fringe spacing of 2.8mm. What will the fringe spacing be if the electrons are replaced by neutrons with the same speed in μm? What s..
The drawing shows two long, thin wires that carry currents in the positive z direction. Both wires are parallel to the z axis. The 50-A wire is in the x-z plane and is 5 m from the z axis. The 40-A wire is in the y-z plane and is 4 m from the z ax..
A dart is thrown horizontally toward the bull's-eye, point P on the (non-standard size) dart board in the figure, with an initial speed of 8.9 m/s. It hits at point Q on the rim, vertically below P 0.14 s later. What is the distance PQ? How far aw..
in a movie tarzan evades his captors by hiding underwater for many minutes while breathing through a long thin reed.
What will an object weigh on the moon's surface if it weighs 100 N on the Earth's surface? Compute g(o) on the moon from values of the mass and radius of the moon found in Appendix C.
An 80 kg weightlifter is standing holding a bar weighing 981 N directly over his head. What is the GRF (ground reaction force) acting on the weightlifter's feet
How did Pavlov and Watson's focus on scientific inquiry of behaviours differ from earlier viewpoints of structuralisms, psychoanalysts, and functionalists.
A baseball thrown at an angle of 55.0?^\circ above the horizontal strikes a building 16.0m, Find the direction of the velocity of the baseball just before it strikes the building
Suppose a pion is traveling in the positive x-direction, and the magnetic field is in the positive z direction. Was the pion positively or negatively charged
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