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Consider a two-electron atom in which the electrons, orbiting a nucleus of charge +Ze, follow Bohr-like orbits of the same radius r, with the electrons always on opposite sides of the nucleus.
(a) Show that the net force on each electron is toward the nucleus and has magnitude The energy needed to remove both electrons is just the negative of the energy you found in part.
(d). Compute the energy needed to remove both electrons in helium, and then repeat for Li+. Compare your results with the experimental values of 79.0 eV and 198 eV, respectively.
A parallel-plate capacitor is charged to an electric potential of 337 V by moving 3.88E+16 electrons from one plate to the other
If the bow is pulled back a distance 0.14 m before releasing the arrow, what is the work done on the bow as the bowstring is pulled back into position
For no apparent reason, a poodle is running at a constant speed of 3.40 m/s in a circle with radius 2.8m. Let v1 be velocity vector at time t1, and let v2 be the velocity vector at time t2.
A person walks 25.0° north of east for 2.70 km. How far would the person walk due north and due east to arrive at the similar location.
A 11.9-m-long wire of mass 132g is stretched under a tension of 250N . A pulse is generated at one end, Where will the two pulses first meet
A hydrogen atom is in the n=8 state. Use your answer to find the electron's de Broglie wavelength
It takes the elevator in a skyscraper 4.5s to reach its cruising speed of 12m/s. What is the passenger's weight before the elevator starts moving
A 4 kg object moving at 17 m/s in the positive x direction has aone-dimensional elastic collision with an object initially at rest. After the collision the object of unknown mass has a velocity of 30 m/s in the positive xdirection. What is the unk..
The magnetic field inside a 5cm diameter solenoid is 2.0T and decreasing at 4.0 T/s. What is the electric field strength inside the solenoid
The final angular velocity of a golf swing was 370 deg/s with a constant angular acceleration of 580 deg/s2. Compute how far did the club rotate
A monochromatic beam of light of wavelength 720 nm is incident normally on a diffraction grating with 4,000 lines/cm. What is the angle for the first order maximum
In a photoelectric effect experiment, no current flows unless thewavelength is less than 570nm. What is the work function of themetal?
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