To solve this problem it is necessary to apply the concepts related to the change of Energy in photons and the conservation of energy.
From the theory we could consider that the energy change is subject to
Where
Initial Energy
Energy loses
Replacing we have that
Therefore the Kinetic energy of the electron once it has broken free of the metal surface is 0.8eV
Answer:
32.5/s squared
Explanation:
The Nucleus
Protons and Neutrons are found in the nucleus of an atom.
2400joules
P.E
m= 20kg h=8m g=10m
P.E= 20×8×10
=2400joules
the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface
3 j
12.0 kilo / 4.00 meters = 3 j