Answer: 4800 N/m
Explanation:
Given
mass of rock
Height of cliff
compression in the spring
Here, potential energy is converted into kinetic energy which in turn converts to elastic potential energy of the spring
A train on a straight track goes in the positive direction for 5.2 km, and then backed up for 3.3 km. Which of the following des
1 answer:
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(a) 159 nm
First of all, let's calculate the energy difference between the level E1 and E4:
Now we know that this energy difference is related to the wavelength of the absorbed photon by
where
is the Planck constant
is the speed of light
is the wavelength of the photon
Solving for , we find
b) 293 nm
As done in part a), let's calculate the energy difference between the level E2 and E3:
this energy difference is related to the wavelength of the absorbed photon by
Solving for again, we find
c) 226 nm
As done in part a) and b), let's calculate the energy difference between the level E1 and E3:
this energy difference is related to the wavelength of the emitted photon by
Solving for again, we find