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light with a frequency of 5.40 x 10^14 Hz travels in a block of glass that has an index of refraction of 1.52
what is the wavelenght of the light in vacuum?
what is the wavelength of the light in the glass?
An electron is released to accelerate from point 1 to point 2 in a potential region. The electric potentials at these points are V1 = -35 V and V2 = +200 V. Calculate the change in potential energy of this electron
A truck travels 2.75 km north and then makes a 90° left turn and drives another 4.90 km. The whole trip takes 6.00 min. What is the magnitude of the average velocity for this trip
Assume that the masses of the chains, pulleys, and ropes are negligible and the crate is rising with an acceleration of 2.6 m/s2. Identify the force.
a police camera is designed to read the plate number on a speeding car. what is the diameter of the camara's aperture
One side of the roof of a building slopes up at 34.0°. A student throws a Frisbee onto the roof. It strikes with a speed of 15.0 m/s and does not bounce, but slides straight up incline. The coefficient of kinetic friction between plastic and roof is ..
A train engineer blows a whistle that has a frequecy of 4.0 X 10^2 hz as the train approaches a station. if the speed of the train id 25 m/s, what frequency will be heard by a person at station.
A man looks at himself in a concave shaving mirror whose radius of curvature is 48 inches. What is the image's magnification
Consider a flagpole (mass 20kg and length 10m) attached to the wall by a cable, What is the magnitude and direction of the force exerted by the hinge on the flagpole
Why is the normal force of an object zero at the top of a hill (such as the hill of a roller coaster)? I'm doing a circular motion unit and I found a few problems where this is the case, and I was wondering how it works.
What is the horizontal distance between elbow and the point where the weight of the forearm acts.
A parallel beam of light containing red (660 nm) and blue (470 nm) wavelengths goes from polystyrene to water, What is the angle between the two colors in water
Suppose you were performing the same experiment on this crate but were doing it on the moon instead, where the acceleration due to gravity is 1.62 m/s squared. What magnitude push would cause it to move? What will be its acceleration if you maintaine..
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