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Two converging lenses are placed such that they are three focal lengths apart. A final image is projected on a screen which is measured to be 82.0 cm to the right of the final lens.
A) If it is known that the two lenses have the same focal length of 24.7cm , where is the initial object located?
B) What is the linear magnification of the lens system?
Citing our textbook material, explain how the sociological approach toward social problems differs from other approaches. Why are certain problems considered significant and others are not? 2) Next, choose one social problem that exists in society th..
An open train car, with a mass of 2130 kg, coasts along a horizontal track at the speed 2.41 m/s. The car passes under a loading chute and, as it does so, gravel falls vertically into it for 2.59 s at the rate of 489 kg/s. What is the car\'s speed af..
In reality, the COP of the heat pump will only be 60 percent of the ideal value. What is the minimum power of the electric motor when the COP is 60 percent of the ideal value
A model-train car of mass 275 gtraveling with a speed of 0.50 m/s links up with another car ofmass 410 g that is initially at rest. What is the speed of the cars immediately after they have linked together? Find the initial kinetic energy.
A baggage cart full of luggage is coasting at a speed vA across the airport taxiway. When forty-one percent of the mass of the cart and luggage is thrown off the cart, Calculate the ratio vB/vA
A 140g oscillator has a speed of 90.5cm/s when its displacement is 1.70cm and 55.0cm/s when its displacement is 5.20cmcm. What is the oscillators maximum speed
A 41.2-kg boy, riding a 2.65-kg skateboard at a velocity of +5.07 m/s across alevel sidewalk, jumps forward to leap over a wall. Just afterleaving contact with the board, the boy's velocity relative to thesidewalk is 6.60 m/s, 9.63° above the hori..
an electron passes through a point 2.55 cm from a long straight wire as it moves at 31.3 of the speed of light
Calculate the rate of heat conduction through house walls that are 13.0cm thick and that have an average thermal conductivity twice that of glass wool. Assume there are no windows or doors.
Consider a car which weighs about 2000 kg and is parked at an elevation of 30 m above the bottom of a hill with a constant slope equal to -.5. what is a horizontal component of the force on the car
Suppose Fuzzy, a quantum-mechanical duck, lives in a world in which h = 2?J · s. Fuzzy has a mass of 2.05 kg and is initially known to be within a pond 1.00 m wide. What is the minimum uncertainty in the duck's speed
An airplane can be made invisible to radar by coating the plane with a thin layer of an antireflective material. How many dark fringes are observed when 600 nm light illuminates the slides from directly above
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