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A non-uniform beam of length 4.41m and weight 1.02kg makes an angle of 25.2 with the horizontal. It is held in position by a frictionless pivot at its upper-right end and by a cable a distance of 3.01m farther down the beam and perpendicular to it. The center of gravity of the beam is a distance of 2.06m down the beam from the pivot. Lighting equipment exerts a downward force of 5.10kN on the lower-left end of the beam.
A) Find the tension T in the cable.
B) Find the vertical component of the force exerted on the beam by the pivot.
C) Find the magnitude of the horizontal component of the force exerted on the beam by the pivot.
You want to estimate the height of the Empire State Building. You start at its base and walk 15 m away. Then you approximate the angle from the ground at that point to the top to be 88 degrees. How tall do you estimate the Empire State Building to..
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Two workers are trying to move a heavy crate. One pushes on the crate with a force , which has a magnitude of 444 newtons (N) and is directed due west.
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