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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?
Establish an average acceleration
A bat flies toward a wall, emitting a constant sound of frequency 2.00 rm kHz. This bat hears its own sound plus the sound reflected by the wall.
If so evaluate their acceleraton and the tension in the string. If not determine the sum of the magnitudes of the forces of friction acting on the blocks.
Two 9.0 cm--diameter metal plates are 1.2 cm apart are charged to 12.5 nC . They are suddenly connected together by a 0.218mm, What is the maximum current in the wire
An airplane must reach a speed of 172 mi/h to take off. If the runway is 470 m long, what is the minimum value of the acceleration that would allow the airplane to take off productively.
display a pendulum bob is suspended from a pivot. show that if I draw the pendulum back by an angle θ, the center of the bob is elevated by the distance.
A 2.5-kg block is attached to a spring with k=100 N/m and compress it with a distance of 0.40 m. What is the mechanical energy of the block
Find out the sum of these four vector forces: 12N to the right at 35.0° above the horizontal, 31.0 N to the left at 51.5° above the horizontal, 7.45N to the left at 35.0° below the horizontal, and 24N to the right at 48.0° below the horizontal.
A uniform board is leaning against a smooth vertical wall. The board is at an angle above the horizontal ground. The coefficient of static friction between the ground and the lower end of the board is 0.620.
When the centrifuge reaches an angular speed of 2.5 rad/s, the trainee experiences a total acceleration equal to 4.8 times the acceleration due to gravity. Explain how long is the arm of the centrifuge?
On a frictionless, horizontal air track, the glider oscillates at the end of an ideal spring of force constant 2.52N/cm. The graph in the acceleration of the glider as a function of time. Find the mass of the glider.
If a wind begins blowing from the southwest at a speed of 110km/h (average), calculate the velocity (magnitude) of the plane
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