Apurple beam is hinged to a wall to hold up a blue sign. the beam has a mass of mb = 6.7 kg and the sign has a mass of ms = 17.2 kg. the length of the beam is l = 2.78 m. the sign is attached at the very end of the beam, but the horizontal wire holding up the beam is attached 2/3 of the way to the end of the beam. the angle the wire makes with the beam is θ = 33.9°.
what is the tension in the wire? what is the net force the hinge exerts on the beam? the maximum tension the wire can have without breaking is
t=936 n. what is the maximum mass sign that can be hung from the beam?
Answers: 1
Physics, 22.06.2019 05:00, hihihi129473838
Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?
Answers: 3
Physics, 22.06.2019 09:30, xxtonixwilsonxx
True or false graphs must include scales that increase by the same amount
Answers: 1
Apurple beam is hinged to a wall to hold up a blue sign. the beam has a mass of mb = 6.7 kg and the...
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