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Shtirlitz [24]
2 years ago
14

The rigid beam is supported by a pin at C and an A992 steel guy wire AB of length 6 ft. If the wire has a diameter of 0.2 in., d

etermine how much it stretches when a distributed load of w=200lb/ft acts on the beam. The wire remains elastic
Engineering
1 answer:
irga5000 [103]2 years ago
8 0

Answer:

change in length = 0.0913 in

Explanation:

given data

length = 6 ft

diameter = 0.2 in

load of w = 200 lb/ft

solution

we apply here first equilibrium moment about C that is express as

∑M(c)  = 0    .............1

so it can express as to get force in AB

10× 200 × ( 5) - (T cos(30)) × 10  =  0

solve it we get

Tension is wire T(AB)  = 1154.7 lb

and we know modulus of elasticity will be here for A992

E = 29000 ksi

and area will be

Area = \frac{\pi }{4}\times 0.2^2  

so change in length will be express as

change in length = \frac{PL}{AE}      ................2

put here value and we get

change in length = \frac{1154.7 \times 6 \times 12}{\frac{\pi }{4}\times 0.2^2 \times 29000 \times 1000}

change in length = 0.0913 in

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<h2>Answer:</h2>

7532V

<h2>Explanation:</h2>

For a given transformer, the ratio of the number of turns in its primary coil (N_{p}) to the number of turns in its secondary coil (N_{s}) is equal to the ratio of the input voltage (V_{p}) to the output voltage (V_{s}) of the transformer. i.e

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<em>From the question;</em>

N_{p} = number of turns in the primary coil = 8 turns

N_{s} = number of turns in the secondary coil = 515 turns

V_{p} = input voltage = 117V

<em>Substitute these values into equation (i) as follows;</em>

\frac{8}{515} = \frac{117}{V_s}

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