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Thermionic emission is the process by which electrons are emitted by a metal as a result of the heating of the metal. The electrons which are emitted are all from the sea of free electrons which bond the ...
The pressure increases when it is moved from a cool environment to a warmer environment. This is because the molecules of oxygen have more kinetic energy in a warmer environment and therefore move faster....
The relationship between velocity, frequency and wavelength is given by: v=fλ. In this case, we have: v=fλ1 and v=2fλ2 .Since the question states that the velocity is const...
We are asked for the force acting on the car and we know from Newton's second law that F = ma Therefore, we need to calculate the acceleration first. We use a = (vf - vo)/(t - to) where vf = final speed, ...
Propagation:Sound waves are longitudinal, meaning that the vibrations occur parallel to the direction of propagation (travel). Electromagnetic wa...
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