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A diverging and converging lens with equal focal lengths of f = 0.5 m are placed so that their "fake" focal points overlap. If you place an object 2 m to the left of the leftmostlens, where is the final image formed? What are its attributes? Draw the ray diagram todouble-check your work. Suppose you are allowed to use these the same type of lenses with what ever focal length you need. What type of devise you can build with these two lenses?
A group of physics students are conduction an experiment in projectile motion. find the time of flight for the ball in their experiment
A crate with mass 36.0 initially at rest on a warehouse floor is acted on by a net horizontal force of 142. Explain how far does it travel in 12s and what is its speed at that time?
A guitar string is 90.0cm long and has a mass of 3.17 g. From the bridge to the support post (=l) is 60.0cm, What are the frequencies of the fundamental and first two overtones
A 6 kg object sits on a horizontal surface with coefficient of friction = .8. What is the minimum force (not necessarily horizontal) necessary to make the object slide?
A parallel plate capacitor with plates of area 500 cm2 is charged to a potential difference V and is then disconnected from the voltage source. How much does the energy of the capacitor change due to the movement of the plates
A bowling ball of mass 6.00 kg rests in a groove with smoth, perpendicular walls, inclined at angles of 30.0 degrees (theta). find the normal forces at the left and right points of contact
A 42.00kg pole vaulter running at 13 m/s vaults over the bar. Her speed when she is above the bar is 1.3 m/s. Avoid air resistance, in addition to any energy absorbed by the pole, and determine her altitude as she crosses the bar.
A +10uC charge is 20cm away from a -40uC charge. Detrmine the field of intensity
A cat dozes on a stationary merry-go-round, at a radius of5.5m from the center of the ride. Then the operator turns on the ride and brings it up to its proper turning rate of one complete rotation every6.0s.
A 89.0-kg boulder is rolling horizontally at the top of a vertical cliff that is 20 m above the surface of a lake, What must be the minimum speed of the rock
A 4.0- kg wooden block rests on a level table. The coefficient of friction between the block, What is the acceleration of the wooden block
An advertisement claims that a centrifuge takes up only 0.127m of bench space but can produce a radial acceleration of 3000g (g= 9.8m/s^2) at 5000 rev/min
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