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Someone has suggested that the device shown in figure below be used to improve the maximum force F against the spring, which has a spring constant of k. This is accomplished by changing the temperature of the liquid-vapor mixture in the container. You are to design such a device to close sun-blocking window-shutters that require a maximum force 0.5 Ibf. The piston must move 6 inches to close those shutters completely.
You elect to use R-134a as the working fluid and arrange the liquid-vapor mixture container such that the temperature changes from 70°F when shaded from the sun to 100°F when exposed to the full sun. Select the sizes of the various constant in this system to do this task. Also select the necessary spring constant and the amount of R- 134a to be used.
You select a rental package that includes a car with an average consumption of 6.00 \rm liters of fuel per 100 \rm km. how much (in US dollars) will you spend in fuel on your trip
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A 0.525 kg ball starts from rest and rolls down the hill with uniform acceleration, travelling 150 m throughout the second 10.0 rm s of its motion.
A cat rides a merry-go-round while turning with uniform circular motion. What is the magnitude of the cat's centripetal acceleration
When you look down into a swimming pool or lake, are youlikely to underestimate or overestimate its depth? Explain. How does the apparent depth vary with the viewing angle
A frictionless gas-filled cylinder is fitted with a movable piston.The block resting on the top of the piston determines the constantpressure that the gas has. The height h is 0.120 mwhen the temperature is 273 K and increases as the temperature i..
a converging lens forms an image of an 8.00-rnm-tall real object. the image is 12.0cm to the left of the lens 3.40cm
A positive charge +q1 is located to the left of a negative charge -q2. On aline passint through the two charges, theer are two places where the total potential is zero. The first place is between the charges and is 5cm to the left of the negativ..
a briefly describe the davidson-germer experiment. how does it support the de broglies hypothesis?b what is bragg
What is an acceleration of two falling sky divers (mass 120.0 kg including parachute) while the upward force of air resistance is equal to one-fourth of their weight.
A block with a mass m1=60 kilogram sitting on a frictionless table is connected to a suspended mass m2=2.0 kilogram by a light string passing over a frictionless pulley. calculate the speed of which mass m2 hits the floor
mary is in a train traveling at 30ms. fred is standing next to the train tracks.the train passes fred at 30ms. 2m after
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