This can be helpful when comparing your present wage to a wage being offered by a prospective employer where each wage is stated in a different periodic term (e.g., one is listed as an hourly wage and the other is listed as annually).
Definition Of Work. Work is the transfer of energy. In physics we say that work is done on an object when you transfer energy to that object. If you put energy into an object, then you do work on that object (mass).If a first object is the agent that gives energy to a second object, then the first object does work on the second object.The energy goes from the first object into the second object.f you put energy into an object, then you do work on that object (mass). If a first object is the agent that gives energy to a second object, then the first object does work on the second object. The energy goes from the first object into the second object.
Any excess energy appears as the kinetic energy of the electron. sf(hf=KE+w) w is the work function of the metal and is the energy required to just remove the electron. :.sf(KE=hf-w) Converting eV to Joules: sf(w=2.3xx1.6xx10^(19)=3.68xx10^(-19)color(white)(x)J) Since we are given the wavelength sf(lambda) we can write: sf(KE=(hc)/(lambda)-w) :.sf(KE=(6.63xx10^(-34)xx3.00xx10^(8))/(400xx10^(-9))-3.68xx10^(-19)color(white)(x)J) sf(KE=(4.9925-3.68)xx10^(-19)color(white)(x)J) sf(KE=1.312xx10 ...