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A vertical ideal spring is mounted on the floor and has a springconstant of 170 N/m. A 0.70-kg block is placed on the spring in twodifferent ways. (a) In one case, the block isplaced on the spring and not released until it rests stationary onthe spring in its equilibrium position. Determine the amount(magnitude only) by which the spring is compressed. (b) In a second situation, the block is releasedfrom rest immediately after being placed on the spring and fallsdownward until it comes to a momentary halt. Determine the amount(magnitude only) by which the spring is now compressed.
We want to rotate the direction of polarization of a beam ofpolarized light through 90o by sending the beam throughone or more polarizing sheets. What is the minimum number of sheets required
Two sinusoidal waves of the same period, with amplitudes of 7.3 and 7.60 mm, What is the phase constant of the 7.60 mm wave in rads
An electric fan is turned off, and its angular velocity decreases uniformly from 400 rev/min to 220 rev/min in 5.00 s. Find the angular acceleration in rev/s^2. Find the number of revolutions made by the motor in the 5.00 s interval. How many more..
A Satellite circles planet Zeron every 98 minutes. The mass of the planet Zeron is known to be 5.0x 10 24 kg. What is the radius of the orbit of the satellite
Two ants race across a table 73cm. long. One travels at 4.18cm/s and the other at 3cm/s. When the first one crosses finish line, how far behind is the second one.
Three moles of an ideal gas are contained in a 75 L container at a pressure of 1.6 atm. What is the temperature of the gas
A block of mass 1.90 kg is pushed 4.60 m along a frictionless horizontal table by a constant 16.0 N force directed 27.0° below the horizontal.
A certain elevator cab has a total run of 201 m and a maximum speed is 315 m/min, How far does the cab move while accelerating to full speed from rest
A 1.50 kg glider, attached to the end of an ideal spring with force constant k = 300 N/m, Compute the total mechanical energy of the glider
a 0.75-kg mass moving with a speed of 5.0 ms encounters a 0.25-kg mass moving in the opposite direction with speed 5.0
A ray of light enter a light fiver at an angle of 15 degreeswith the long axis of fiver. calculate the distance the light raytravels between successive reflections off the sides of the fiber.the fiber has an index of refraction of 1.6 and 10^-4 m ind..
In an experiment of specific heat there are mixed 196 g of aluminum at 107°C with 52.3 g of water at 18.6 °C. Calculate the change in entropy of the system
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