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A thin bi-convex lens is to focus the image of an object onto a screen so that the image is life sized. The lens has equal radii of 112 cm and the refractive index is n=1.5.
(a) What is the distance d from image to screen?
(b) What is the total distance L between object and image?
When these waves move into a shallower part of the lake, their speed decreases to 1.6 m/s, though their frequency remains the same. Find out the wavelength of the waves in the shallower water.
in a hurricane, the air (density 1.2kg/m3) is blowing over the roof of a house at a speed of 104km/hr. what is the lifting force on the roof of area 100m2
An X-ray photon with a wavelength of 0.240 nm scatters from a free electron at rest. Find the initial momentum of the photon
Consider an RC series circuit. You measure R to be 918 ? and C to be 826 nF. What will the voltage across the capacitor be at this frequency
To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 14cm in diameter and 55cm in length, What is the total length of wire you will need to meet these specifications
Two objects of masses m and 3.00 m are moving towards each other along the x-axis with the same initial speed of v. The object with mass m is travelling to the left.
When a current flows in an aluminum wire of diameter 3.29 mm, the drift speed of the conduction electrons is 2.85 × 10-4 m/s. What is the electron current in the wire
When jumping straight down, you can be seriously injured if you land stiff-legged. In a stiff-legged landing he comes to a halt in 1.61 ms. Find the magnitude of the average net force that acts on him during this time
In a typical game of squash, two people hit a soft rubber ball at a wall until they are about to drop due to dehydration and exhaustion.
During the collision with the ground, he comes to rest in a time of .101 s. The average force exerted on him by the ground is +18000 N, where the upward direction is taken to be the positive direction. Elucidate from what height did the student f..
A 100kg hollow sphere is neutrally buoyant and completely underwater. Its volume is 0.5 cubic meter. what fraction of this volume is helium
questionone of ways that a forensic scientist can figure out the make and model of a car from a ldquohit and runrdquo
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