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A diverging lens (f = -11 cm) islocated 21 cm to the left of a converging lens (f =34.0 cm). A 2-cm-tall object stands to the left of the diverginglens, exactly at its focal point. What is the height of the final image (including proper algebraic sign)?
cm
A 0.413 kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 24.6 N/m. The block rests on a frictionless surface. A 0.0500 kg wad of putty is thrown horizontally at the block, hitting it with an i..
The block in the figure is initially at rest on an inclined plane at the equilibrium position that it would have if there were no friction between the block and the plane
A bodybuilder configures a leg-press apparatus to a resistance of230 lb (about 1000N). She pushes the weight to her full extensionand comes to rest. A). What is her normal force on each of her feet
A light string is wrapped around a 0.20-kg hollow 0.080-m-radius hoop. What is the angular acceleration of the hoop
Object A is moving due east, while object B is moving due north. They collide and stick together in a completely inelastic collision. Momentum is conserved. Find the direction of the final velocity of the two-object system
The third floor of a house is 7.00 m above street level. How much work is necessary to move a 143kg refrigerator to the third floor.
A small solid ball is released from rest while fully submerged in a liquid and then its kinetic energy is measured when it has moved 5 cm in the liquid. What is the density of the ball
At a given instant an 55 mH inductor stored an energy of 73 µJ. What is the current in the inductor at this instant
When Neil Armstrong was on the moon he used a spring scale to measure the mass of several rocks. What is its actual mass
A 73.1-kN car is traveling at 70.9 mph when the driver decides to exit the freeway by going up a ramp. What is the magnitude of the average drag force exerted on the car
Calculate the force a piano tuner applies to stretch a steel piano wire 8.10 mm, if the wire is originally 0.850 mm in diameter and 1.30 m long
a continuous line of charge lies along the x axis extending from x 5 1x0 to positive infinity. the line carries
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