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Solve the given question:
Question: A stopping potential of 3.2V is needed for radiation whose wavelength is 200nm.
Part A- What is the work function in eV of the material?
Please show me how you do the question.
A 0.8 kg mass is moving in a circle of radius 1.5 m on a flat frictionless table at the end of a string. The speed of the mass is 3 m/s. The string routes through a hole in the center of the table and is held by you underneath the table.
you are given a 5-loop standing wave. The velocity of the wave of the string is v= 10 m/s. What is the frequency of the wave on the string
The length of a beam increases by 1.26mm when its temperature is raised from 29.87oC to 71.49 oC. What is the length of the beam at the initial temperature
A transmission line is made of a core of copper surrounded by a concentric circular sheath of steel to give it strength. The copper core is 1.0 cm in diameter and the tightly fitting sheath has an outer diameter of 2.0 cm.
Three capacitors having capacitances of 8.7%u03BCF , 8.7%u03BCF , and 4.1%u03BCF are connected in series across a 31-V potential difference. What is the total energy now stored in the capacitors
A nuclear power plant has a reactor that produces heat at the rate of870MW. This heat is used to produce260MW of mechanical power to drive an electricalgenerator. What is the thermal efficiency of the plant
A delivery truck travels 29 blocks north, 18 blocks east, and 26 blocks south. Assume the blocks are equal length. What is the magnitude of its final displacement from the origin
An airplane is flying in a horizontal circle at a speed of 520 km/h. If the wings of the plane are tilted 34° to the horizontal, what is the radius of the circle (in m) in which the plane is flying? Assume that the required force is provided entir..
A closed system is observed to have 75 objects in it. Initially, the total energy of the system is 6183 Joule. After 8.6 hour has passed, compute how much total energy will the system contain
Your task in physics laboratory is to make a microscope from two lenses. One lens has a focal length of 2.8 centimeter, the other 1.1 centimeter. Evaluate the magnification of your microscope
A 0.30m radius tire accelerates from rest at a constant 2.0rad/s2 over a 5.0 sec interval. What is the tangential component of acceleration for a point on the outer edge of the tire through the 5 sec interval?
if a 1 micro-coulomb charge is next to a 4 micro-coulomb charge the magnitude of the repulsive force on the 1
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