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A uniform steel beam of length 5.00m has a weight of4.50*103 N. One end of the beam is bolted to avertical wall. The beam is held in a horizontal position by acable attached between the other end of the beam and a point on the wall. The cable makes an angle of 25.0o above thehorizontal. A load whose weight is 12.0*103 N ishung from the beam at a point that is 3.50m from the wall. Find a) the magnitude of the tension in the supporting cable and b)the magnitude of the force exerted on the end of the beam by the bolt that attaches the beam to the wall.
What is tension T in each of the cables
A wire of length L is wound into a square coil with 127 turns and used in a generator that operates at 60.0 Hz, What is the length Lof the wire used to construct the coil
Two moles of an ideal gas are placed in a container whose volume is 6.9 x 10-3 m3. What is the average translational kinetic energy of a molecule of the gas
question an electron accelerated from rest through a voltage of 420 v enters a region of constant magnetic field. if
An aluminum cup contains 225 g of water and a 40 g copper stirrer, all at 27°C. A 490 g sample of silver at an initial temperature of 90°C is placed in the water. Calculate the mass of the aluminum cup
A circuit has a resistance of 1 ?; a reactance, due to the capacitance, of 27 ?; Find the impedance of the circuit
If the car in problem 1 traveled at 36.0km/h during the first part of the trip and at 90.0km/h during the remainder, Calculate the average velocity for each part of the trip
A container holds 0.90 g of oxygen at a pressure of 7.7 atm. a)How much heat is required to increase the temperature by 113 C at constant pressure? b) How much will the temperature increase if this amount of heat energy is transferred to the gas at c..
Illustrates the physics principles in this problem. An astronaut in his space suit and with a propulsion unit (empty of its gas propellant) strapped to hisback has a mass of 147 kg. During a space-walk, the unit, which hasbeen filled with propella..
The switch in a series RL circuit in which R = 5.60 ?, L = 2.10 H, and ?V = 24.2 V is closed at t = 0.0 s. What is the maximum current in the circuit? What is the current when t = 0.375 s?
A disk of radius R = 9 cm is pulled along a friction less surface with a force of F = 15 N by a string wrapped around the edge. At the instant when d = 28 cm of string has unwound off the disk, what is torque exerted about the center of the disk.
Water is pumped steadily out of a flooded basement at a speed of 5.1 m/s through a uniform hose of radius 0.5 cm. What is the power of the pump
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