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A string with linear mass density of 0.141 kg/m is under a tension of 103 N. How much power must be supplied to the string to generate a sinusoidal wave of amplitude 1.69 cm and frequency 117 Hz?
A mass moves from rest down an inclined plane with an angle of 60 degrees at the top. find the acceleration of the mass down the ramp
A 681 kg crate is lifted to the top of a building with an acceleration of 3.37 m/s2. Find the force exerted by the cable on the crate
A train 450 m long is moving on a straight track with a speed of 82.1 km/h. The engineer applies the brakes at a crossing, and later the last car passes the crossing with a speed of 16.7 km/h. Assuming constant acceleration, determine how long the..
Light shines through a single slit whose width is 7.40 10-4 m. A diffraction pattern is formed on a flat screen located 3.2 m away. The distance between the middle of the central bright fringe and the first dark fringe is 3.25 mm. What is the wavelen..
A 226.0 kg block of ice at 0o C is placed in a large lake. The temperature of the lake is just slightly higher than 0o C, What is the entropy change of the ice
A 1.15kg block is attached to a spring with spring constant 18.0N/m . While the block is sitting at rest, a student hits it with a hammer, find The amplitude of the subsequent oscillations
A uniform electric field points midway between the positive x and y axies. Its strength is 100Volts/m. A -50nC charge is placed at the position ( 2m, 3m ) and fixed in place. What are the components of the total electric field at the location (..
Two masses, m1 = 2.10 kg and m2 = 9.51 kg are on a horizontal frictionless surface and they are connected together with a rope. What is the acceleration of the whole system
A small, spherical bead of mass 3.05 g is released from rest at t = 0 in a bottle of liquid shampoo. The terminal speed is observed to be vT = 1.80 cm/s. Find the value of the resistive force when the bead reaches terminal speed
A silver coin lies on the bottom of a clear lake 5.5 m deep. The coin is 4 cm in diameter. How far away along the horizontal direction is the coin actually located from your eye
A student on a piano stool rotates freely with an angularspeed of 3.07 rev/s. The student holds a 1.39 kg mass in eachoutstretched arm, 0.759 m from the axis of rotation. compute the initial and final kinetic energy of the system
In an action movie, the villain is rescued from the ocean by grabbing onto the ladder hanging from a helicopter. what was the speed at which the helicopter was ascending
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