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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?
An optometrist prescribes contact lenses that have a focal length of 50.0cm. (a) Are the lenses converging or diverging? (b) Is the person who wears them near-sighted or far-sighted?
an electron moves in the positive x-direction a distance of 2.43 m in 2.99middot10-8 s bounces off a moving proton and
Identifcal 2.0uC charges are placed on the vertices of a square with sides that are 2.0m in length. Determine the electric potential at the center of the square
A 90.6-kg fullback running east with a speed of 5.04 m/s is tackled by a 94.1-kg opponent running north with a speed of 2.96 m/s. (a) Explain why the successful tackle constitutes a perfectly inelastic collision. (b) Calculate the velocity of the pla..
Container a holds an ideal gas at a pressure of 5.0 x10^5 Pa and temperature of 300 K. It is connected with a thin tube (and a closed valve) to container B, with 4 times the volume of A. Container B holds the same ideal gas at a pressure of 1.0 x 10^..
A 72 person stands on a uniform ladder 4.5 long, that weighs 75. The floor is rough; hence, it exerts both a normal force, and a frictional force, on the ladder. The wall, on the other hand, is frictionless; it exerts only a normal force.
A circular window of 30 cm diameter in a submarine can withstand a maximum force of 5.20 * 10^5 N. What is the maxumim depth in a lake
A small object with a momentum of magnitude 5.0 kg m/s approaches head on a large object at rest, what is the magnitude of the small objects momentum change in kg m/s
Robert has just bought a new model rocket, and is trying to measure its flight characteristics. how much work is done by the drag force on the rocket during its ascent
Two masses m1 and m2, with m1
Determine the kinetic and potential energies when thedisplacement is one half the amplitude. For what value of the displacement does the kineticenergy equal the potential energy?
A state trooper chases a speeder along a straight stretch of road; both vehicles move at 136 km/h. The siren on the tropper's vehicle produces a sound of 490 Hz. What frequency is heard by speeder? (Take the speed of sound in air to be 343 m/s.)
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