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Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.67 kg·m2 and an angular velocity of +3.04 rad/s. Disk B is rotating with an angular velocity of -9.42 rad/s. The two disks are then linked together without the aid of any external torques, so that they rotate as a single unit with an angular velocity of -1.04 rad/s. The axis of rotation for this unit is the same as that for the separate disks. What is the moment of inertia of disk B?
determine the mass of liquid ammonia that boils away before thermal equilibrium. Assume an excessive amount of liquid ammonia is present and that the liquid ammonia does not react with the copper.
Three charged particles are placed at each of three corners of an equilateral triangle whose sides are of length 2.8 . Two of the particles have a negative charge: = -6.7 and = -13.4 . The remaining particle has a positive charge, = 8.0 . What is ..
(a) How tall is the lamp's image if the lamp is a distance of 39.6 cm from the mirror (include sign if negative)? (b) How tall is the lamp's image if the lamp is a distance of 85.8 cm from mirror (include sign if negative)?(c) How tall is the lamp..
Physics: Simple Harmonic Oscillator, Traveling waves are set up in a pair of long strings by a simple harmonic oscillator. The strings have identical mass densities of 5.1 grams/meter.
A 65Kg ice skater pushes off his partner and accelerates backwards at 1.3m/s^2. If the partner accelerates in the opposite direction at 2.0m/s^2, what is mass of the other skater.
A space station, in the form of a wheel 133 m in diameter, rotates to provide an "artificial gravity" of 2.20 m/s2 for persons who walk around on the inner wall of the outer rim. Find the rate of the wheel's rotation in revolutions per minute that wi..
A 60-kg student traveling in a car with a constant velocity has a kinetic energy of 1.2 X 104 J. What is the speedometer reading of the car
A point charge +2.40 is held stationary at the origin. A second point charge -4.30 moves from the point = 0.175 , = 0 , How Much work is done by the electric force on q2
The radius of a proton is 0.9e-15 m; suppose that if the particles touch, the distance between their centers will be twice that. What will be the total kinetic energy of both particles an instant before they touch.
Two red blood cells each have a mass of 9.05 × 10-14 kg and carry a negative charge spread uniformly over their surfaces. What is the maximum accleration of the cells as they move toward each other and just touch
A 0.255 kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.200 kg puck that is initially moving along the x axis with a velocity of 2.06 m/s. After the collision, the 0.200 kg puck has the speed of 1.02 m/s at an ang..
Two tugboats pull a disabled super tanker. Each tug exerts constant force of 1.20 multiplied by 106 N, one 19° west of north and the other 19.0° east of north, as they pull the tanker 0.69 km toward the west. What is the total work they do on supe..
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