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Consider two hypothetical electrons orbiting around a nucleus. Each electron has the same mechanical energy. If the electron's orbit are treated semi-classically, suppose the semi-major axis of the orbits are the same, but the orbit of one electron is circular and that of the other is an ellipse with a high eccentricity. Which electron has the higher angular momentum?
A The electron with the circular orbit.
B The electron with the elliptical orbit.
C Both electrons have the same angular momentum.
When studying the optical spectrum of a very distant quasar(quasi stellar object), what is the radial speed of the quasar with respect to earth
A 0.381 H inductor is connected to a capacitor and a 45.5 resistor along with a 69.3 Hertz, 28.3 V generator. Calculate the voltage drop across the resistor at resonance
The radius of the moon is 1/4 of that of the earth and its mean density is 4/5 that of the earth. Find the force of attraction of the moon
target 1 cm2 in area and 0. 1 cm thick. There are 0.048 x 1 024 atoms per cm3 in the target, and the total cross-section at the energy of the beam is 4.5 b. What is the macroscopic total cross-section
In a photoelectric-effect experiment, the maximum kinetic energy of electrons is 3.2eV . When the wavelength of the light is increased by 50% , What is the work function of the cathode
A new block is attached to the first block. The new block is made of a different material and has a coefficient of static friction ? = 0.73. (When there is no friction the acceleration of the first block is 4.29 m/s2)
Imagine you started to walk towards the west. Imagine that you can walk forever and that you can even walk on water. If you walk in the same direction forever, what will happen? Where will you end up?
A 1.03 kg mass is attached to a spring of force constant 11.0 N/cm and placed on a frictionless surface. By how much will the spring stretch
A monkey is chained to a stake in the ground. The stake is 3.00m from a vertical pole, and the chain is 3.4m long. How high can the monkey climb up the pole?
two 10 cm-diameter charged disks face each other 29cm apart. the left disk is charged to - 50 nc and the right disk is
On a workday, the average decibel level of a busy street is79dB with 100 cars passing a given point every minute. what is the decibel level of the street
What is momentum and its SI units? What is the momentum of a racing car of mass 500 kg driven at 270 km/h?
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