An atom in the ground state has a collision with an electron, then emits a photon with a wavelength of 1240 nm. What conclusion
can you draw about the initial kinetic energy of the electron
1 answer:
Answer:
attached below is the free body diagram of the missing illustration
Initial kinetic energy of the electron = 3 eV
Explanation:
The conclusion that can be drawn about the kinetic energy of the electron is
E = initial kinetic energy of the electron
E = -4 eV
E = -1 eV
insert the values into the equation above
= -1 -(-4) eV
= -1 + 4 = 3 eV
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= Initial velocity
= initial position
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t = time
With the data we have we can find the time as well
With the equation of motion and considering that we have no initial position, that the initial velocity is also zero then and that the acceleration is gravity,
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Answer:
Explanation:
Given that the airplane starts from the rest (this is initial velocity equals to zero) and accelerates at a constant rate, position can be described like this: where x is the position, t is the time a is the acceleration and
is initial velocity. In this way acceleration can be found.
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Now we are able to found velocity at any time with the formula: