When the kinetic energy is at it's highest, the potential energy is absolute zero.
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Answer:
a)
b)
c) displacment = 400nm
Explanation:
Given that
charge of the electron and proton
the distance between electron and proton = 2.0 nm
The force between the proton and electron
Here
The work done in displacing the electron from 2.0 nm to 12 nm
is the minimum kinetic energy
W = F .s
(b)
If this energy is the kinetic energy of the electron
Here m is the mass of the electron =
The speed of the electron
(c)
If the kinetic energy is twice the initial kinetic energy
2*(initial kinetic energy) = F*displacement
displacement = 2*(initial kinetic energy)/F
Displacement =
displacement = 400 nm
Answer: 2:1
Explanation:
Given
Mother has four times the mass of young son
If they possess same kinetic energy then
Equate the energy
Thus, the ratio of speed is 2:1.
Answer:
As the string vibrates, it "moves" the particles in the air, generating what we know as a soundwave.
Because this soundwave is generated by the wave-like motion of the string, makes sense that the soundwave will have some characteristics in common with the standing wave on the guitar string. This means that both waves will have the same normal modes. (So if the principal mode of the vibrating string has a frequency of 440hz, to soundwave also will have that main frequency, and we will hear an A). You can hear almost all the normal modes when you pluck a guitar string, particularly in music, these are called "overtones" or "harmonics"