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A periscope for a submarine uses two totally reflection 45°-45°-90° prisms with total internal reflection on the side adjacent to the 45° angles. It springs a leak, and the bottom prism is covered with water. Explain why the periscope no long works. (nprism = 1.52, nwater = 1.33).
A speck of clay of mass m = 0.01 kg strikes and stick to a wooden block of mass M = 0.99 kg, which rests on a frictionless horizontal surface and is attached to a spring with spring constant k = 100 N/m. The impact compresses the spring 10 cm. Fi..
You are investigating an accident where a 1500 kg car that was parked without its emergency brake on rolled down a hill with a slope of 8 degrees a distance of 150 m, How fast was the car moving when it hit the van
Water moves through a constricted pipe in steady, ideal flow. At the lower point the pressure is 1.75 105 Pa and the pipe radius is 2.60 cm, Find the speed of flow in the lower section
An electron is traveling through a region of space in which the electric field is along the +x direction, What is the acceleration of the electron
A fish takes the bait and pulls on the line with a force of 2.3N . The fishing reel, which rotates without friction, is a uniform cylinder of radius 0.060m and mass 0.86kg, What is the angular acceleration of the fishing reel
An object with mass 4.0kg is executing simple harmonic motion, attached to a spring with spring constant 300N/m, Calculate the amplitude of the motion
A 1.4 kg object at x = 2.00 m, y = 3.10 m moves at an angle 45° north of east. Compute the magnitude of the object's angular momentum about the origin.
The walls of a blackbody cavity are at a temperature of 27 degrees C. find the frequency of the radiation of maximum intensity
The step-down transformer in a local neighborhood reduces the voltage from a 7,200 V line to 120 V. What current does the transformer draw from the line
A simple pendulum has a period of 3.74 s. The acceleration of gravity is 9.8 m/s^2 What is its length? What would its period be on the Moon
A wooden plank is raised at one end to make an angle of 30° to horizontal. determine the rate of acceleration down the incline
A block of mass m1 = 4.00 kg on a frictionless inclined plane of angle 30.0° is connected by a cord over a massless, What is the magnitude of the tension in the cord
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