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Static equilibrium Indicate the direction of positive rotation and the axis of rotation in this problem, as well as the usual coordinate frame. Use vector notation, correctly, for both parts. 2. A bar, 0.750 kg in mass, is attached to the vertical wall via a rotatable hinge, and to the horizontal ceiling with a string, as shown. The bar is 1.00 m long, and the string is attached to the bar 0.10 m from its right end.
a. What is the tension in the string?
b. What is the full vector description of the force exerted by the hinge on the bar?
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. What is the speed of a satellite in a geosynchronous orbit
Two identical freight cars roll without friction (one at 1 m/s, the other at 2 m/s) toward one another on a level track. They collide, couple, and roll away together with a combined momentum of.
A ceiling fan has five blades, each with a mass of 0.90 kg and a length of 0.66 m. what is the total rotational kinetic energy of the five blades
Using m=mo/(1-v^2/c^2)^(1/2) to describe the special relativistic effects on an electron orbiting with a speed v in an atom, estimate the percentage correction to the n=1 energy in a hydrogen atom or a uranium atom.
Which section of the wire could generate magnetic field on point Q? Name the sections as AB, CD etc.)
At the end of an amusement park ride, you want the gondola to stop without the acceleration exceeding 2 g's. determine the maximum allowed braking force
A wire is 2.5 m long. Afterapplying a force to one end of the wire, it is now 2.506 m long. Calculate the tensile strain in the wire
A body is traveling at 5.00 m/s along the positive direction of an x-axis. No net force acts on the body. What is the speed of the forward part
q1. metal rod is 41.126 long at 23.0 and 41.149 long at 46.4 calculate the average coefficient of linear expansion of
one component of a magnetic field has a magnitude of 0.0262 t and points along the x axis while the other component has
A woman is riding a Jet Ski at a speed of 24 m/s and notices a seawall straight ahead. what is the minimum distance from the seawall that she can begin making her turn and still avoid a crash
When blowing across a narrow mouth glass, the less wter in theglass the deeper the frequency heard, but if the top of the glessis rubbed to produce the less water, the higher frequency, why?
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