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Question 1. A 12kg object hangs in equilibrium from a string of total length L = 5m & linear mass density µ = 0.001 kg/m. The string is wrapped around two light frictionless pulleys that are separated by the distance d = 2m. (1) At what frequency must the string between the pulleys vibrate in order to form the st&ing wave pattern shown?Question 2. A tuning fork vibrated at 512 Hz falls from rest & accelerates at 9.8 m/s2. How far below the point of release is the tuning form when waves of frequency 485 Hz reach the release point? Take the speed of sound in air to be 340 m/s.
A 3.40 g coin is positioned 16.0 cm from the center of a turntable. The coin has static and kinetic coefficients of friction with the turntable surface of mu_s = 0.720 and mu_k = 0.480. What is maximum angular velocity with which the turntable can sp..
A 2.46 x 10-2-kg block is resting on a horizontal frictionless surface and is attached to a horizontal spring whose spring constant is 110 N/m. The block is shoved parallel to the spring axis and is given an initial speed of 10.4 m/s, while spring is..
A 3.10-m-long, 310 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 73.0 kg construction worker stands at the far end of the beam. What is the magnitude of torque abou..
A 6.4kg ball, hanging from the ceiling by a light wire 135cm long, is struck in an elastic collision by a 1.80 ball moving horizontally at 4.20 m/s just before the collision. Find the tension in the wire just after the collision.
What is wave number
The equations of force and motion objective questions.
An airplane flies 200 km due west from city A to city B and then 315 km in the direction of 33.0° north of west from city B to city C.
What fraction of the power radiated by the sun is intercepted by the planet Mercury? The radius of Mercury is 2.44 x 106 m, and its distance from the sun at the moment is 5.75 x 1010 m. presume that sun radiates uniformly in all directions.
Find the position of the object to acquire real, magnified image, inverted, and virtual, upright image.
find out the magnitude of an acceleration
What is speed of the second train, which travels faster
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s.What is the frequency heard by the observer . What must be the result have been for the horizontal speed.
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