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2 moles of an ideal gas is allowed to expand from 0.002 m^3 to 0.02 m^3 while the pressure is held at 325000 pascals. This is done by adding heat to it so tht its temperature rises; at the point, its volume is held constant, and heat is removed so that the pressure drops. The system then returns to its original pressure through the isothermal process. Draw the P-V diagram for this heat cycle. Determine the total work done on or by the gas. Determine the net heat flow in or out of the system.
An ideal gas has a volume of 0.20 m3, a temperature of 30 oC, and a pressure of 1.0 atm. What is the new pressure
A uniform plank of length 5.70 m and weight 215 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support. To what distance x can a person who weighs 452 N walk on the overhanging part of the plank before it just be..
Two small spheres of equal mass m are suspended from strings of length L. When the two spheres are each given an equal charge q they separate by a distance x, swinging out an angle theta from the vertical
A 9300 kg boxcar travelling at 23 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 15 m/s. What is the mass of the second car.
A 6.6-kg rock and a 4.7 × 10-4-kg pebble are held near the surface of the earth. Determine the magnitude of the gravitational force exerted on each by the earth
A 66 {rm kg} skier speeds down a trail, as shown in the figure . The surface is smooth and inclined at the angle of 22 ^circ with the horizontal. Find the magnitude of the net force acting on the skier.
Let the angle of incidence be 70° and the transmitted region be diamond with n2 = 2.42
A Molecule of DNA is 2.17 um long. The ends of the molecule become strongly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 0.78% upon becoming charged. Determine the effective spring con..
A proton and an electron have the same kinetic energy upon entering a region of constant magnetic field
You have a string with a mass of 0.0131 kg. You stretch the string with a force of 9.31 N, giving it a length of 1.89 m, What is the wavelength of the standing wave you create in the string
A square loop of wire with dimensions L x L lies in the xy plane, moving along the x direction with a speed v. Find the induced emf as the loop moves from one region to the next
A person lifts a 950N box by pushing it up an incline. If the person exerts a force of 350N along the incline, what is the mechanical advantage of incline.
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