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A helium-neon laser beam has a wavelength in air of 633 nm. Ittakes 1.43 ns for the light to travelthrough 25.0 cmof an unknown liquid.
What is the wavelength of the laserbeam in the liquid?
An attacker at the base of a castle wall 3.63 m high throws a rock straight up with speed 8.80 m/s at a height of 1.51 m above the ground. Find the change in speed of a rock
The most intense beam of light that can propagate through dry air must have an electric field whose maximum amplitude is no greater than the breakdown value for air: Eair max = 3.0 x 106 V/m, Calculate the intensity of this wave
a 16.0-mw helium-neon laser emits a beam of circular cross section with a diameter of 2.85 mm.a find the maximum
a dynamite blast at a quarry launches a rock straight upward and 1.7 s later it is rising at a rate of 15 ms. assuming
Bicyclists in the Tour de France do enormous amounts of work during a race. How much work does he do during a 177-km race in which his average speed is 12.7 m/s
A ball is shot from level ground into the air. At a height of 9.1 m, its velocity is given by v=(7.6m/s) + (6.1m/s), What total horizontal distance can this ball travel
describe the various ways that you encounter and utilize different em radiation in your daily life.original work
an object with a mass of .40 kg moving with a speed of 25 m/s is brought to rest after sliding on a rough surface. What is the stopping distance of the object
A “75 Watt” light bulb uses an average power of 75W when connected to an rms voltage of 120V. What is the resistance of the light bulb? What is the maximum current in the light bulb? What is the maximum power used by the bulb at any given instant of ..
An electron accelerated from rest through a voltage of 350V enters a region of constant magnetic field. If the electron follows a circular path with a radius of 28cm, what is the magnitude of magnetic field.
Light of wavelength 0.519 µm (in air) enters the water in a swimming pool. What is the wavelength of the light in water
A 60 kg man is ice-skating due north with a velocity of 6.0 m/s when he collides with a 36 kg child. What is the direction of the child's velocity just before the collision
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