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What is maximum light wavelength to be absorbed for creating electron-hole pairs in one type of Copper indium gallium (di)selenide (CIGS) photovoltaic cell? Assume this cell has a band gap of 1.35 eV. What happens, if this CIGS solar cell is irradiated with light having a wavelength of 950 nm? Explain how the CIGS semiconductor interacts with this 950 nm light.
A uranium atom is ionized seven times, losing seven electrons inthe process. Its resulting mass is 3.90×10−25 kgand it is given a kinetic energy of 3000 eV. If it circles ina magnetic field at a radius of 4.00 m, what is the strength of the magnetic ..
The charge is on the inside surface. The field inside the shell is zero. Inside the metal the field is strongest. Only positive charges can be on the outside surface. The field on the outside is perpendicular to the surface.
In order to heal properly from a fractured thigh a patient's leg must be kept under traction. In the system shown below the leg a kept under traction by a series of ropes and pulleys attached to a weight W. If the physical therapist specifies that..
A motorboat heads due east at 16m/s across a river which is flowing due at 9.0m/s
A machine is designed to perform a given amount of work in a given amount of time. Find the power of the second machine
The slope of a line connecting two points on a velocity versus time graph gives A) instantaneous velocity. B) average velocity. C) instantaneous acceleration. D) average acceleration. I know that its acceleration.. so C or D. Dont know the difference..
A 90--nozzle with exit diameter d is attached to a hose of diameter 3d with pressure p. The nozzle changes the direction of the water flow from the hose through an angle of 90-. Calculate the magnitude of the force of the water on the nozzle if ..
Consider two disks of the identical mass rotating about their axes. Disk C has twice the radius of disk D. Find the ratio of the moment of inertia of disk C to that of disk D
a parallel-plate capacitor has 1.82 cm2 plates that are separated by 4.40 mm with air between them. if a 12.0 v battery
Tom the cat is chasing Jerry the mouse across a table surface 1.3 meter off the floor. Find what velocity components will he have just before he hits
Find the thermal conductivity of the material from which the box is made.
What must be one's speed relative to frame S in order that one's clock will lose 1 second per day as observed from S? What if teh are to lose one minute per day.
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