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A beam of polarized light with an average intensity of 14.8W/m2 is sent through a polarizer. The transmission axis makes an angle of32°with respect to the direction of polarization. Determine the rms value of the electric field of the transmitted beam.
A crate is dragged 3m across a rough floor at a constant speed by a worker applying 500N at an angle of 30 deg above the horizontal. How many forces act on the crate
The wavelength of the laser beam used in a compact disc player is 649 nm. Estimate the spacing between the slits of the grating
A girl and her bicycle have a total mass of 35 kg. At the top of a hill her speed is5 m/s. what is her speed at the bottom
Two carts collide in a perfectly elastic collision. Cart A has a mass of 1.2 kg and an initial velocity of 0.13 m/s. What is the final speed of each cart
a man has to install an instrument on top of the mast of his sailboat. He uses a boson's chair to hoist himself up. With what acceleration does the man move up
A block of mass M is attached to a spring (spring constant k) which is attached to a wall. what is the amplitude of the resulting simple harmonic motion
In SI units, the electric field in an electromagnetic wave is described by Ey = 100 sin(107x - ?t ). What is the frequency of the EM wave
If the pressure of the 1.2-cm3 volume is reduced to 1.2 × 10?11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container
Tarzan swings on a 28.0-m-long vine initially inclined at an angle of 37.0° with the vertical. What is his speed at the bottom of the swing if he starts from rest
A car in stop-and-go traffic starts at rest, moves forward 19 in 8.0 , then comes to rest again. The velocity-versus-time plot for this car is given in the figure. What distance does the car cover in the first 4.0 seconds of it motion?
A constant 6.0 N net force acts for 4.0 s on a 12 kg object. what is the objects change in velocity
A garden has a circular path of radius 50{\rm m} . John starts at the easternmost point on this path, What is the magnitude of John's displacement
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