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Three balls A, B, and C, with masses of 2.7 kg, 1.1 kg, and 1.2 kg, respectively, are connected by massless rods, as shown in the figure below. A force Fvec = 12.4 N ihat is applied to the 2.7-kg ball. (No forces act on the other two balls.) What is the acceleration of the center of mass of the three-ball system?
A point charge q1 = +7e is fixed at the origin of a rectangular coordinate system, and a point charge q2 = -10e is fixed at x = 7.1 nm, y = 0.
What is the resistance of the light bulb? A light bulb is wired in series with a 120-? resistor, and they are connected across a 120.0-V source
A violin string 30.00 cm long and fixed at both ends oscillates in its n = 1 mode. The speed of waves on the string is 280 m/s, What is the wavelength of the emitted sound wave
Two point charges totaling 9.00 µC exert a repulsive force of 0.250 N on one another when separated by 0.537 m. What is the charge on each
one end of a uniform beam of 222N is hinged to a wall, the other end is supported by a wire that makes angles of 30 with both wall and beam, find out the tension in the wire and horizontal and vertical componentes of the force od the hinge on the ..
If that angular acceleration is 1.8 rad/s^2, illustrate what is the total moment of inertia about the axis of you and the chair?
Identical samples containing 32P are measured for a period of 1 hr in a counter having an efficiency of 44 percent and a negligible background. From a large number of observations, the mean number of counts in 1 hr is (2.93 x 10^4)
What is tension in the wire
Two soccer players start from rest, 47 m apart. They run directly toward each other, both players accelerating. At the instant they collide, how far has the first player run
A 1500 {rm kg} wrecking ball hangs from a 20 {rm m} long cable. The ball is pulled back until the cable makes the angle of 17.0^circ with vertical.
A disk with mass m = 8.5 kg and radius R = 0.35 m begins at rest and accelerates uniformly for t = 18.8 s, to a final angular speed of ? = 28 rad/s. What is the moment of inertia of the disk?
Assume that the blocks accelerate as shown with an acceleration of magnitude a= 0.550 m/s^2 and that the coefficient of kinetic friction between block 2 and the plane is μ= 0.400. Find out the mass of block 2, m2, when θ= 30.0.
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