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It is desired to slip an aluminum ring over a steel bar. At 10 the inside diameter of the ring is 4.550 and the diameter of the rod is 4.580 . In order for the ring to slip over the bar, the ring is heated. Once the aluminum ring is slipped over the bar, the ring and bar are allowed to equilibrate at a temperature of 10 . The ring is now stuck on the bar
a) If the temperatures of both the ring and the bar are changed together, should the system be heated or cooled to remove the ring?
b) Find the temperature at which the ring can be removed.
A cosmic ray proton streaks through the lab with velocity 0.80c at an angle of 55° with the +x direction (in the xy plane of the lab). Compute the magnitude and direction of the proton's velocity
Light of wavelength 418 nm is incident normally on a film of water 1.0 µm thick. The index of refraction of water is 1.33. What is the wavelength of the light in the water
A wheel free to rotate about its axis that is not frictionless is initially at rest. A wheel free to rotate about its axis that is not frictionless is initially at rest
The potential at location A is 393 V. A positively charged particle is released there from rest and arrives at location B with a speed vB. The potential at location C is 781 V, and when released from rest from this spot, the particle arrives at B wit..
A 1.20 liter flask contains a certain quantity of ideal gas at 305 K. after that an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.30 times its unique value. What is the final temperature.
A loudspeaker of mass 18.0 {rm kg} is suspended the distance of h = 1.20 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 2.70 {rm m}. What is the tension T in each of the cables? Utili..
Two Styrofoam balls with the same mass m = 7.7 10-8 kg and the same positive charge Q are suspended from the same point by insulating threads of length L = 0.92 m. The separation of the balls is d = 0.027 m. What is the charge Q?
Find out the induced emf in the loop at an instant
If a car traveling at 66 km/h will skid 20 m as its brakes lock, how far will it skid if it is traveling at 120 km/h when its brakes lock.
Ikjoo Yoo of the Tampa Bay Lightning has had his slap shot clocked at 102.1 mph (45.64 m/s). How much momentum is lost in the collision
A circuit contains six 205 ohm lamps with 60 W bulbs and a 9 ohm heater connected in parallel. voltage across the circuit is 120 V.what is the current in the circuit when four lamps are turned on.
hat is the magnitude of the total flux through the five non-shaded faces.
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