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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 = 38o by a brace that isattached to a pin. The beam has a weight of 338 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 respectto the horizontal. The hinge applies a force to the left end of thebeam that has a horizontal component H and a vertical componentV. Find the magnitudes of these three forces.
A Yo-yo has a rotational inertia of 952 g·cm2 and a mass of 107 g. Its axle radius is 2.27 mm, and its string is 117 cm long. What is the magnitude of its linear acceleration
At rest, a car's horn sounds the note A (440 Hz). The horn is sounded while the car is moving down the street. A bicyclist moving in the same direction with one-third the car's speed hears a frequency of 417 Hz. Is the cyclist ahead of or behind th..
A piece of copper wire has a resistance per unit length of 5.95 10-3 ?/m. Find the magnetic field strength at the center of the coil
Suppose you consume 2000 Cal of food per day. Note that a food Calorie, with capital C, is one kilocalorie: 1 Cal = 1 kcal. How many watts of heat and work can you do
What is the wavelength of the second laser that would place its second maximum at the same location as the fourth minimum of the first laser, if = 0.300 ?
A spring with spring constant 13 N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 8.5cm and free. The ball makes 26 oscillations in 18 s seconds.
In an L-R-C series circuit, the resistance is 420 ohms, the inductance is 0.300 henrys, and the capacitance is 1.20×10?2 microfarads. what maximum voltage amplitude can the source have
An object of 50.5 N is attached to the free end of a light string wrapped around a reel with a radius of 0.250 m and mass of 3.00 kg. The reel is a solid disk, free to rotate in a vertical plane about the horizontal axis passing through its center..
a 1.99 kg block slides on a rough, horizonatl surface. The block hits a spring with a speed 2.16 m/s, what is the force constant of the spring
A ball rolls down a hill 100 m. The hill is inclined 60 degrees. what is the final rotational speed of the ball
If the Volume of the vessel is 20 then we know that the maximum amount of displaced fluid will be [v] units and when you place the vessel in the water there will be [u] units of fluid displaced, which will flow into the graduated cylinder.
A pitched baseball of mass .200kg, arives at home plate with a speed of 40m/s and is batted straight back to the picture, determine the work done by the bat on the ball
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