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A beam of unpolarized light shines on a stack of five ideal polarizers, set up so that the angles between the polarization axes of pairs of adjacent polarizers are all equal. The intensity of the transmitted beam is reduced from the intensity of the initial beam by a factor of ? = 0.285. Find the angle between the axes of each pair of adjacent polarizers.
A heat pump has a coefficient of performance of 3.75 and operates with a power consumption of 7.13 103 W. How much energy does it deliver into a home during 24 h of continuous operation? How much energy does it extract from the outside air?
In a particular redox reaction BrO^- is oxidized to BrO3^- and Ag^+ is reduced to Ag. Complete and balance the equation for this reaction in acidic solution.
A 1 kg mass is moving in a circle of radius 1.8 m on a flat frictionless table at the end of a string. How much work did you do to reduce the radius by a factor of one-half
The two mediums below propagate particles differently. Which of the two medium would have higher acoustic velocity and create better propagation or movement of particles? water balloons, hard baseballs.
Find the frequency in terahertz of visible light with a wavelength of 441 nm in vacuum
Consider the titration of a 25.0 mL sample of 0.110M HC2H3O2 with 0.130M NaOH. Determine the pH at one-half of the equivalence point. initial pH=2.85, the volume of added base required to reach the equivalence point=21.2 mL
Explain the events that can change the state of the system and write a programming code to generate 100 random variates according to exponential distribution and store them in an array.
During each cycle, a refrigerator ejects 680 kJ of energy to a high-temperature reservoir, and takes in 600 kJ of energy from a low-temperature reservoir. Determine the work done on the refrigerant in each cycle. Determine the coefficient of performa..
Calculate the percent ionization of Benzoic acid for the following concentration: (a) 0.40 M (b) 0.00040 please show work I got the right answer for a which is 1.3% but i cant find b
In Europe, surveyors often measure angles in grads. There are 100 grads in one-quarter of a circle. How many grads are there in 2.16 radians
A 80 kg man in a 7.0 kg chair tilts back so that all the weight is balanced on two legs of the chair. Assume that each leg makes contact with the floor over a circular area with a radius of 1.0 cm,
a diver runs horizontally with a speed of 1.2 m/s off a platform that is 5.0 m above the water. What is the speed just before striking the water
A copper cable (p=1.7*10^-8ohms*m) is designed to carry a current of 300A with a power loss of 2W/m. What is the required radius of this cable
What is the phase angle in a series LRC cicuit with L= 50 mH, R=20ohms, C=100mF? The rms applied voltage is 120 Volts at 60 Hz, How much power is dissipated in the resistor
a snowboarder moves along a horizontal ramp before going off of the edge of the ramp. 1.8s after leaving the ramp, find the snowboarders speed at the moment she leaves the ramp
A blue ball is thrown upward with an initial speed of 22.8 m/s, from a height of 0.9 meters above the ground. 2.8 seconds after the blue ball is thrown, How long after the blue ball is thrown are the two balls in the air at the same height
A student is standing on a ladder as shown in the figure to the right. Each leg of the ladder is 2.7 m long and is hidged at point C. What is the tension in the tierod
A proton is accelerated from rest to 0.75c. Find the relativistic momentum of the proton moving at 0.75c.
A pitcher claims he can throw a 0.160-kg baseball with as much momentum as a 2.50-g bullet moving with a speed of 1.50 103 m/s
question1adjust the solution process discussed in class for uniform slow viscous flow past a sphere to the case of flow
The speed of an ion in a particle accelerator is doubled from 0.400c to 0.800c. The initial relativistic momentum of the ion is 4.20 x 10-17 kg·m/s. estimate the final relativistic momentum of the ion
Suppose you have a gamma ray photon of wavelength 0.0001 nm that hits a muon. If the exiting gamma ray comes out at 30°, what is the wavelength of the exiting photon
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