Physics, 02.11.2021 01:00 jaymoney0531
Bob is designing two new bicycles. The bikes are identical except for the wheels. Bike 1 has solid wheels, mass M, radius R. Bike 2 has "hoop" wheels. The hoop wheels have the same mass, but that mass is situated as far as possible from the center. Bob has decided to take each bicycle for a test ride. Assume Bob exerts the same effort to get each bicycle moving. Which bicycle will take longer to build up speed? Briefly explain/justify your answer with appropriate physics concepts.
Answers: 2
Physics, 22.06.2019 00:20
Consider the particle-in-a-box problem in 1d. a particle with mass m is confined to move freely between two hard walls situated at x = 0 and x = l. the potential energy function is given as (a) describe the boundary conditions that must be satisfied by the wavefunctions Ď(x) (such as energy eigenfunctions). (b) solve the schr¨odingerâs equation and by using the boundary conditions of part (a) find all energy eigenfunctions, Ďn(x), and the corresponding energies, en. (c) what are the allowed values of the quantum number n above? how did you decide on that? (d) what is the de broglie wavelength for the ground state? (e) sketch a plot of the lowest 3 levelsâ wavefunctions (Ďn(x) vs x). donât forget to mark the positions of the walls on the graphs. (f) in a transition between the energy levels above, which transition produces the longest wavelength Îť for the emitted photon? what is the corresponding wavele
Answers: 1
Physics, 22.06.2019 03:00
Arotating space station is said to create âartificial gravityââa loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an âartificial gravityâ of 9.80 m/s^{2} 2 at the rim?
Answers: 3
Physics, 22.06.2019 07:20
Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?
Answers: 2
Bob is designing two new bicycles. The bikes are identical except for the wheels. Bike 1 has solid w...
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