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The drawing shows a uniform horizontal beam attached to avertical wall by a frictionless hinge and supported from below atan angle θ = 43o by a brace that isattached to a pin. The beam has a weight of 349 N. Three additional forces keep the beam in equilibrium. The brace applies a forceP to the rightend of the beam that is directed upward at the angle with respect to the horizontal. The hinge applies a force to the left end of the beam that has a horizontal component H and a vertical componentV. Find the magnitudes of these three forces.
Three protons are at the vertices of an equilateral triangle 0.800nm on each side. What is the potential energy of this set of charges
A railroad car of mass M= 2000kg and speed(initial velocity) Vo= 8.50 m/s collides and couples to another car of equal mass and initially at rest, What is the final speed of the two coupled railroad cars
A 378 N, uniform, 1.56 m bar is suspended horizontally by two vertical cables at each end. Cable A can support a maximum tension of 502.0 N without breaking, and cable B can support up to 397.0N. You want to place a small weight on this bar. What is ..
A beam of light in air strikes the surface of a smooth piece of plastic having an index of refraction of 1.55 at an angle with the normal of 20°. The incident light has component E-field amplitudes parallel and perpendicular to the plane of incidence..
Coil springs are widely used in industry. Those used in scientific instruments must be manufactured to exhibit consistent performance. Calculate the force constant k
An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 443 Hz when the train is approaching him.
A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.27 m/s. What is his speed when he catches up
Force F = (-5.0 N) i hat + (5.0 N) j hat acts on a particle with position vector r = (-3.0 m) j hat + (5.0 m) k hat. What is the angle between the directions of force and torque
Each croquet ball in a set has a mass of .50kg. The green ball travels at 10.5m/s and strikes a stationary red ball. what is the final speed of the red ball after the collision
question1a space station in a form of a large wheel 271m in diameter rotates to provide an artificial gravity of 2.6
A parallel plate capacitor with a plate area of 30.0 cm2 and air in the space between the plates, which are separated by 1.7 mm, is connected to a 18.0-V battery. If the plates are pulled back so that the separation increases to 5.1 mm, how much work..
Two packing crates of massesm1= 10.0kg and m2=7.00 are connected by a light string that passes over a frictionless pulley, Find the acceleration of the 7.00 kg crate
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