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A horizontal spring with spring constant k is on a frictionless surface with one end of the spring fastened to a wall. The spring is compressed a distance ?x from its equilibrium length and a block of mass m is placed against it. If the spring is now released, what will be the speed of the block just as it leaves the spring? Explain how you arrived at this result
A truck driver has a shipment of apples to deliver to a destination 550 away. The trip usually takes him 10.0 . Today he finds himself daydreaming and realizes 100 into his trip that that he is running 30.0 later than his usual pace at this point. At..
A cat dozes on a stationary merry-go-round, at a radius of 6.0 m from the center of the ride. What is the least coefficient of static friction between the cat and the merry-go-round
If an astronaut dropped a small rock near the surface of Pluto, how far (in m) would the rock fall in 2.4 s
A transformer connected to a 100 V (rms) ac line is to supply 8.0 V (rms) to a portable electronic device. What rms current must the secondary supply
1 what is the spring stiffness of the entire wire considered as a single macroscopic large scale very stiff spring?2
If the orientation of the spacecraft is to be changed by 30.0°, for what time interval must the gyroscope be operated.
With a wooden ruler you measure the length of a rectangular piece of sheet metal to be 12 mm. What is the ratio of the rectangle's width to its length
what is the equation for gravitational potential energy?what is the equation for kinetic energy?define conservation of
Two charged pith balls are suspended on very light 10.7 cm strings. Each has a mass 11.0 g. In stability, the total angle between the strings is 37 degrees. Draw the free body diagram for one of the pith balls and clearly label all forces with magnit..
q1. for each of the situations below the charged particle enters a region of uniform magnetic field. illustrate a
in an exciting game, a baseball player manages to slide safely into second base. the mass of the player is 80.9 kg, find the magnitude of the frictional force
A uniform plank of length 4.3m and weight 236N rest horizontally on two supports, with 1.1m of the plank hanging over the right support. To what distance x can person who weighs 450N walk on the overhanging part of the plank before it just begins ..
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