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In a material having an index of refraction n , a light ray has frequency f, wavelength ?, and speed v.
What is the frequency of this light in vacuum and in a material having refractive index n1?
What is the wavelength of this light in vacuum and in a material having refractive index n1?
What is the speed of this light in vacuum and in a material having refractive index n1?
Universal beam section: bending moment, maximum stress, radius of curvature, A universal beam section has a second moment of area about its neutral axis of 6487 cm4 and its overall depth is 305 mm
What should the charge (sign and magnitude) of a particle of mass 1.487 be for it to remain stationary while placed in a downward-directed electric field of magnitude 630.
As a city planner, you receive complaints from local residents about the safety of nearby roads and streets, Given that the goal is to allow all vehicles to come safely to a stop before reaching the intersection, calculate the maximum desired speed ..
A boy of mass 35 kg and a girl of mass 40 kg are skating towards each other with speeds of 2.5 m/s, and 2.0 m/s respectively. Assume that there is no friction, and find their combined velocity after they meet
Photons of wavelength 65.0 pm are Compton-scattered from a free electron which picks up a kinetic energy of 0.95 keV from the collision
Find the total number of lines in a 2.90 wide diffraction grating whose third-order spectrum has the 640 hydrogen- spectral line at an angular position of 39.0.
An electron is moving at a speed of 1.0 x10^4 m/s in a circular path of radius of 2.1cm inside a solenoid. The magnetic field of the solenoid is perpendicular to the plane of the electron's path. The solenoid has 25 turns per centimeter.
How far from the dog would the suitcase land? You can ignore air resistance.
Three equal point charges, each with charge 1.95 , are placed at the vertices of an equilateral triangle whose sides are of length 0.400 . What is an electric potential energy of the system? (Take as zero the potential energy of the three charges ..
An astronaut travels at a speed of 0.93c from the Earth to a distant star that is 4.5e+17 m away. how old is she when she arrives at the star
On a workday the average decibel level of a busy street is 71 dB, with 100 cars passing a given point every minute. If the number of cars is reduced to 40 every minute on a weekend
The loaded cab of an elevator has a mass of 3.6 x 10^3 kg and moves 193m up the shaft in 20s at constant speed. At what average rate does the force from the cable do work on the cab.
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