Question1a bridge truss extends 200m across a river the

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Question1

A bridge truss extends 200m across a river. The structure is free to slide horizontally to permit thermal expansion. The structural components are linked by pin joints and the masses of the bars are small compared with the mass of a 1360 kg car at the center. Compute the force of tension or compression in each structural component.

Question2

Experiencing a constant horizontal 1.10 m/s wind, a hot-air balloon ascends from the launch site at a constant vertical speed of 2.70 m/s. At a height of 202 m, balloonist maintains constant altitude for 10.3 s before releasing a small sandbag. How far from the launch site does the sandbag land.

Question3

develop an equation for the radius r of the circular path that the electrons follow in terms of the magnetic field B, the electrons' velocity v, charge e, and mass m. suppose that the electrons move at right angles to the magnetic field.

Reference no: EM13350801

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