Answer:
Control panel
Explanation:
The Control Panel is a component of Microsoft Windows which provides the ability to view and change system settings. It consists of a set simple computer programs (applets) that include adding or removing hardware and software, controlling user accounts, changing accessibility options, and accessing networking settings.
Answer: b) FCOR( Face-centered orthorhombic)
Explanation: Face centered orthorhombic lattice is the lattice that has eight lattice corner points and they also have each face with center lattice point.This lattice structure is usually not common in metals.Whereas the face centered lattice structure , body structure lattice and hexagonal close packed lattice are common in metal.Thus option (b) is the correct option.
Answer:
What do AIA, SAG, AFP and AMA all stand for? Select four options. American Institute of Architects American Society of Mechanical Engineers American Medical Association Screen Actors Guild Association for Finance Professionals Professional Colleges.
Answer:
So we know that: E = h*(frequency)
but for this equation, we need energy in joules
so since 1eV is 1.6 *
we will multiply the energy in eV to 1.6 * 10^-19
so energy in joules:
20000 * 1.6 * 10^-19
3.2 * j
Now, finding the frequency:
3.2 * 10^-15 = 6.6 * * frequency
frequency = (3.2 * ) / (6.6 * )
frequency = 4.8 * Hz
Finally, finding the wavelength:
we will use a different formula here,
frequency * wavelength = speed of light
wavelength = speed of light / frequency
wavelength = 3 * / 4.8 *
wavelength = 3 * / 4.8
wavelength = 0.625 *
wavelength = 6.25 * m
frequency = 4.8 * Hz