Physics, 03.01.2020 05:31, kriderdavid
Apenny rides on top of a piston as it undergoes vertical simple harmonic motion with an amplitude of 4.0cm. if the frequency is low, the penny rides up and down without difficulty. if the frequency is steadily increased, there comes a point at which the penny leaves the surface.
1) at what point in the cycle does the penny first lose contact with the piston? (answer choices: )
a. midpoint moving up
b. midpoint losing down
c. highest point
d. lowest point
2) what is the maximum frequency for which the penny just barely remains in place for the full cycle?
Answers: 2
Physics, 22.06.2019 12:30, cardsqueen
Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j
Answers: 3
Physics, 22.06.2019 12:30, madlenserlipepu1o
Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=
Answers: 2
Apenny rides on top of a piston as it undergoes vertical simple harmonic motion with an amplitude of...
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