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In a certain binary-star system, each star has the same mass which is 6.0 times of that of the Sun, and they revolve about their center of mass. The distance between them is the 2.1 times the distance between Earth and the Sun. What is their period of revolution in years?
A pedestrain bridge consists of a walkway of mass 1000kg and length 10.0m supported at each end by brackets. Two people, each of mass 80kg, are walking across the bridge.
q1. a sanding disk with rotational inertia 2.4 10-3 kgbullm2 is attached to an electric drill whose motor delivers a
A converging lens of focal length 19.2 cm is separated by 55.3 cm from a converging lens of focal length 4.72 cm. If the height of the object is 3.10 cm, what is the height of the final image
Cliff and Will are carrying a uniform 2.0m board of mass 74kg. Will is supporting the board at the end while cliff is 0.6m from the other end, Find the normal forces exerted by Cliff and Will
A research-level Van de Graaff generator has a 1.9-m-diameter metal sphere with a charge of 4.9 mC on it, What is the potential near its surface in MV
An object moves 20 m east in 30 s and then returns to its starting point taking an additional 50s. what is the average speed of the object
Consider an airplane flying at Mach 4 at 70,000 feet. A shock is formed due to supersonic flow. Find the total pressure at the nose using 3 approaches
Compute the magnitude of the torque on the tree due to the tension in the rope, with the base of the tree acting as the reference point
Two stationary positive point charges, charge 1 of magnitude 3.65 and charge 2 of magnitude 1.80 , are separated by a distance of 58. An electron is released from rest at the point midway between two charges, and it moves along the line connecting..
Illustrate what angular speed must such a cylinder have so that the centripital acceleration at its surface equals the free-fall acceleration on Earth?
a 2.0 nc charge is placed on the x-axis at x=-3.0cm another 2.0nc charge is placed on the x-axis at x=3.0cm, What is the potential at the origin
A solenoid is constructed having 350 turns of wire and is 62.0 cm in length. A single hanging wire is positioned vertically at the end of the solenoid, what is the magnitude of the force on the wire
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