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Bogdan [553]
3 years ago
5

Help me with this PLEASEEEE!

Physics
2 answers:
larisa [96]3 years ago
5 0

Fossil and hydro energy have a nice day

yKpoI14uk [10]3 years ago
4 0

hydro energy IS a renewable source.

fossil fuels and nuclear are non-renewable.

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Adding an intermediate switch is not an attractive choice to span the distance between two switches due to expense issues. It may have different ports.

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Which gravitational force field dagram is drawn correctly?
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Help please:A boy weighing 30 kg rides a scooter. The total kinetic energy of the boy and the scooter is 437.6 J. Determine the
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A circus tightrope walker weighing 800 N is standing in the middle of a 15 meter long cable stretched between two posts. The cab
Lorico [155]

Answer:

T = 10010 N

Explanation:

To solve this problem we must use the translational equilibrium relation, let's set a reference frame

X axis

       Fₓ-Fₓ = 0

       Fₓ = Fₓ

whereby the horizontal components of the tension in the cable cancel

Y Axis  

        F_{y} + F_{y} - W =0

        2F_{y} = W

let's use trigonometry to find the angles

        tan θ = y / x

        θ = tan⁻¹ (0.30 / 0.50 L)

        θ = tan⁻¹ (0.30 / 0.50 15)

        θ = 2.29º

the components of stress are

         F_{y} = T sin θ

we substitute

       2 T sin θ = W

       T = W / 2sin θ

        T = \frac{ 800}{ 2sin 2.29}

        T = 10010 N

4 0
3 years ago
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