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A laser beam shines along the surface of a block of transparent material (see figure below). Half of the beam goes straight to a detector, while the other half travels through the block and then hits the detector. The time delay between the arrival of the two light beams at the detector is 6.25 ns. What is the index of refraction of this material?
Consider the following circuit with emf = 12 V, C = 2 microF, L = 6 microH, and R = 6ohms. What is the value of the energy stored in the inductor
If an automobile rounds this curve at 30 {rm m/s}, illustrate what is the minimum coefficient of static friction between tires and road needed to prevent skidding?
A turbine in an electric power plant rotates at 3600 rpm. Discover its angular speed in radians/second, and decide the linear speed of a point 72cm from the axis of rotation. The power plant shuts down, and the turbine coast to a halt in 590s.
Though human beings have been able to fly hundreds of thousands of miles into outer space, getting inside the earth has proven much extra difficult. The deepest mines ever drilled are only regarding 10miles deep. To illustrate the difficulties associ..
External forces compress 21 mol of ideal monatomic gas; during the process the gas transfers 15 kJ of heat to its surroundings, How much work was done on the gas
consider a uranium nucleus to be a sphere of radius r 7.4x10-15m with a charge of 92e distributed uniformly throughout
An inexpensive microscope has a tube length of 12.0cm and its objective lens is labeled with a magnification of 10x, Calculate the focal length of the objective lens
A 1.85m diameter wagon wheel makes one revolution in 3.45s. What is the tangential speed of a point in it's rim
A cup of water is heated with a heating coil that delivers 117.85 W of heat. In one minute, the temperature of the water rises by 29.47 C. What is the mass in grams of the water
A roller coaster is riding along the rails at an amusement park. Explain why the normal force the track exerts on the coaster does zero work on it
A nearsighted person wears glasses to correct the problem. How far from the eyes is the person's far point located
One strategy in a snowball fight is to throw a snowball at a high angle over level ground. While your opponent is watching the first one, How many seconds later should the second snowball be thrown after the first to arrive at the same time
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