The next two questions are related: 16. an electron is confined in a 3-dimensional rectangular box (v = 0 inside, and v = 8outside) with sides l = 4 nm, 4 nm, and 5 nm. what minimum energy, e_, must a photon havein order to excite the electron out of its ground state. (the electron absorbs the photon.)a. e_ = 0.015 evb. e_ = 0.045 evc. e_ = 0.071 evd. e_ = 0.125 eve. e_ = 0.241 ev17. now we put 10 electrons into the box. assuming the total energy of the system is as low aspossible, and including the effects of spin, how many electrons have the energy of the secondexcited state? a. noneb. 1c. 2d. 4e. all 10
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Physics, 22.06.2019 06:30
Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.
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Physics, 22.06.2019 15:10
Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground
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Physics, 22.06.2019 18:30
A1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. what is the magnitude of the friction force required to keep the car from sliding?
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Physics, 22.06.2019 20:00
Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?
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