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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what is the charge of the carboxyl group in an amino acid at physiological pH. Please explain the charge. Also what is the charge above and below physiological pH
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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
List the three primary sources of revenue from a commercial customer's account. In today's economic environment, indicate whether each is growing or declining in use and explain why.
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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