Light hits a sodium metal surface and the velocity of the
Light hits a sodium metal surface and the velocity of the ejected electron is 6.61 x 105 m.s-1. The work function for sodium is 150.6 kJ.mol-1. What is the frequency of the incident light on the sodium metal surface?
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A practical Voltage source is modeled of an ideal voltage source of24 volts in series with a 6ohm internal resistance. A series ofidentical fan motors are attached in parallel with the practical source that can be modeled by an 18 ohm resistor.
Light hits a sodium metal surface and the velocity of the ejected electron is 6.61 x 105 m.s-1. The work function for sodium is 150.6 kJ.mol-1. What is the frequency of the incident light on the sodium metal surface
Suppose we used the thumb rule that the optical line of sight distance from an antenna h meters high to the horizon,in kilometers is 4√h. what is the radius of the earth in kilometeres that would justify this approximation
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Two balanced three phase loads that are connected in parallel arefed by a three pahse line having a series impedence of 0.4+j2.7ohms per phase.one of the loads absorbs 560kva at 0.707 pf laggingand th eother 132kWat unity pf.
Suppose that the microwave radiation has a wavelength of 10.8cm . How many photons are required to heat 295mL of coffee from 25.0 ^\circ \rm C to 62.0 ^\circ \rm C
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