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You are a civil engineer designing a road that has a speed limit of 100 kilometer per hour. There is curve on road with a radius of 150 meter.
(a) Find what should be the minimum value of the coefficient of static friction between the road and the tires that allows cars to turn safely at the speed limit?
(b) Find what is the proper banking angle so that cars, moving at the speed limit, can turn the curve safely even in extreme weather conditions where the road is practically frictionless?
A spring is first stretched 2.0 cm from its unstressed length. It is then stretched extra 1.8 cm. How does the work needed for the second stretch compare to the work required for the first stretch (give a ratio of second to first)?
what is the frequency hz of an oscillator with a period of 20 seconds? show how to solve please how much force is
A spring is compressed by 0.0617 m and is used to launch an object horizontally with a speed of 2.58 m/s. at what angular frequency (in rad/s) would it oscillate
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A power plant having a Carnot efficiency produces 1000 MW ofelectrical power from turbines that take in steam at 600 K, Determine the flow rate of the river
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Hearing damage may occur when a person is exposed to a soundintensity level of 90.0 dB (relative to the threshold of humanhearing) for a period of 9.00 hours
find the work done by the field on the electron. What is the change in potential energy associated with the electron.
A 1.80 kg block slides on a rough, horizontal surface. The block hits a spring with a speed of 1.80 m/s and compresses it a distance of 11.0 cm before coming to rest. If the coefficient of kinetic friction between the block and the surface is µk = 0...
A 0.321 kilogram mass is attached to a spring with a force constant of 13.3 N/m. find what is its speed when it is 0.128 meter from equilibrium
An ideal gas is contained in a cylinder with a movable piston. The gas is then heated through an isobaric process. how much work is done by the gas
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