Answer:
Kinetic energy, E = 9.1 eV
Explanation:
It is given that,
At the first excited state of a particular atom is 5.7 eV above the ground state. The kinetic energy of the atom after the collision is 3.4 eV.
We need to find the kinetic energy of the electron just before the collision. The conservation of momentum will be followed here. The energy gets transferred from moving electrons to these atoms is 5.7.
Let E is the kinetic energy of the electron just before the collision. It is equal to :
E = 5.7 eV + 3.4 eV
E = 9.1 eV
So, the kinetic energy of the electron just before the collision is 9.1 eV. Hence, this is the required solution.
The answer would be half their weight on Earth.
Answer:
Explanation:
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Answer:
Convection is heat transfer through the movement of liquids and gases.
