Reference no: EM13953483
1. In a series LCR circuit at resonance, decide which of the following statements are true:
a) The current leads the voltage across the generator
b) The current is in phase with the Voltage
c) The impedance is at a minimum
d) The current is at a minimum
e) The resonance frequency is determined by the inductance, the capacitance, and the resistance.
2. In an unidentified ionized atom, only one electron moves about the nucleus. The radius of the n=3 Bohr orbit is 2. 38 x 10^-10m. What is the energy(in electron Volts) of the n=7 orbit for this atom?
a) -1.11 eV
b) -1.51 eV
c) -3.40 eV
d) -6.04 eV
e) -13.6 eV
3. A film of oil lies on glass(n of glass =1.52). The refractive index of the oil is smaller than that of the glass. The film has the minimum non-zero constructive interference when viewed in red light (Wavelength = 66 Dnm in a vacuum). Assuming that a visible spectrum extends from 380 to 750 nm, what are the visible wavelength(s) in vaccum for which the film will appear dark due to destructive interference?
a) 396 nm
b) 495 nm
c) 440 nm
d) 550 nm
e) 742 nm
4. Radiation with a wavelength of 280 nm shines on a metal surface and ejects electrons that have a maximum speed of 3.48 X 10^5 m/s. Which one of the following metals is it(the values in parenthesis are the work functions)?
a) Potassium ( 2.24 eV)
b) Calcium ( 2.71 eV)
c) Uranium ( 3.63 eV)
d) Aluminum (4.08 eV)
e) Gold(4.82 eV)
|
What smallest resolvable wavelength difference for setup
: A Fabry-Perot interferometer with fixed plate spacing t = 1.50mm is used to examine filtered light from a helium lamp, with wavelength lambda = 587.56nm. The plates have reflectance R = 0.950. What is the free spectral range (in nm) for this spacin..
|
|
Describe the basic internal control procedures
: Control procedures are actions that company personnel take to make sure that policies set forth by management are followed. Important accounting controls are concerned with safeguarding assets and producing accurate and timely financial statements. ..
|
|
Importance of internal control to a business
: Explain the importance of internal control to a business and the significance of the Sarbanes-Oxley Act of 2002. The Sarbanes-Oxley Act of 2002 required publicly traded companies to improve the documentation and functioning of their internal control..
|
|
Describe the various techniques that companies use
: Describe the various techniques that companies use to control cash. The liquidity of cash makes controls over it very important to have in place.
|
|
What are the visible wavelength in vaccum
: In an unidentified ionized atom, only one electron moves about the nucleus. The radius of the n=3 Bohr orbit is 2. 38 x 10^-10m. What is the energy(in electron Volts) of the n=7 orbit for this atom?
|
|
Is this a probability distribution. explain why or why not.
: Would you suspect that the IDEA surveys sent to South students each term could be biased in the responses received? Why or why not?
|
|
Determining the market interest rate
: Youngblood Inc. plans to issue $500,000 face value bonds with a stated interest rate of 8%. They will mature in ten years. Interest will be paid semiannually. At the date of issuance, assume that the market rate is (a) 8%, (b) 6%, and (c) 10%.
|
|
What is the radius of the curvature of the hubcap
: A dedicated sports-car enthusiast polishes the inside and outside surfaces of a hubcap that is a section of a sphere. When she looks into one side of the hubcap, she sees an image of her face 30 cm in back of the hubcap. She then flips the hubcap ..
|
|
How does zappos build king-term customer relationships
: Describe Zappos' market offering. What is Zappos' value proposition? How does it relate to its market offering? How does Zappos build king-term customer relationships
|