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During a storm, a tree limb breaks off and comes to rest across a barbed wire fence at a point that is not in the middle between two fence posts. The limb exerts a downward force of 151 N on the wire. The left section of the wire makes an angle of 14 degrees relative to the horizontal and sustains a tension of 447 N. Find the magnitude and direction of the tension that the right section of the wire sustains.
A 1-m-tall barrel is closed on top except for a thin pipe extending 4.2m up from the top. What is the pressure on the bottom when water is added to fill the pipe to its top
Two coils of wire are placed close together. Initially, a current of 2.3 A exists in one of the coils, What is the mutual inductance of the two-coil system
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. What is the orbital period of the faster planet
A long solenoid has a diameter of 12.2 cm. When a current i exists in its windings, a uniform magnetic field of magnitude B = 22.7 mT is produced in its interior. Calculate the magnitude of the induced electric field
When a mass of 25 g is attached to a certain spring, it makes 19 complete vibrations in 4.5 s. What is the spring constant of the spring
If the entrance velocity into the pipe is 12.5 m/s, what is the rate of flow of the material (air) 'Rm'? What is the velocity 'Vf' when the air is ejected into the surroundings at 1 atm through a nozzle
Water is drawn from a well in a bucket tied to the end of a rope whose other end wraps around a solid cylinder of mass 50 kg and diameter 25 cm. what is the angular acceleration of the 50-kg cylinder
A soccer player kicks a ball from ground level with an initial velocity of 25 m/s at an angle of 30° above the horizontal. What is the highest point in meters that the ball will reach
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 16.0 cm, find electric feild just outside paint layer
A massless spring hangs from the ceiling with a small object attached to its lower end. How far below yi is the new equilibrium (rest) position with both objects attached to the spring
A car with a mass of 1.50x10^3 kg starts from rest and accelerates to a speed of 18.0 m/s in 12s. Assume that the force of resistance remains constant at 400-N all through this time. What is the average power developed by the car's engine?
A construction hoist exerts an upward force of 500 N on an object with a mass of 50 kg. determine the power it expended to lift the object vertically for 10 seconds under these conditions
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