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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.
A thin rod consists of two parts joined together. One third of it is silver and two-thirds is gold. The temperature decreases by 24C°.
1. the temperature of the cosmic background radiation is measured to be 2.7 k. what is the wavelength of the peak in
At t = 0 it is known that of 1000 neutrons in a one-dimensional box of width 10-5 cm, 100 have energy 4E1, How many neutrons are in the left half of the box
A solar collector that can provide 1.0W of power forcharging the 3.0V batteries. What is the maximum charging current the solar collector could supply to fully discharged 3.0V bateries.
A 0.1-kg ball connected to a fixed point by a taut string whirls around a circular path of radius 0.5 m at a speed of 3 m/s. find How many times larger is the former than the latter
the drawing shows six point charges arranged in a rectangle. the value of q is 3.89 oc and the distance d is 0.481 m.
A 25 turn circular coil of length 5.9 cm produces a magnetic field of magnitude 1.6 mT at its center. Find the current in the loop
Engineers have developed a bathyscaph that can reach ocean depths of 5.3 mi. what is the absolute pressure at that depth
A parachutist descending at a speed of 10.0 m/s loses a shoe at an altitude of 30.0 m. (Assume the positive direction is upward.). Explain when does the shoe reach the ground? What is the velocity of the shoe just before it hits the ground?
Two boxes of masses, m and 2m, are in contact with each other on a frictionless surface. What is the acceleration of the more massive box
A 1.5 kg object initially at rest is raised to a height of 10 m by a force of 40 N. What is the velocity of the object at this height What time is needed for this motion
Your roommate is working on his bicycle and has the bike upside down. He spins the 70.0cm -diameter wheel, What is the speed and acceleration of the pebble
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