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max2010maxim [7]
3 years ago
8

When the outside temperature is 5.2 ⁰C, a steel beam of cross-sectional area 52 cm2 is installed in a building with the ends of

the beam bolted securely to two immovable pillars. In the summer thetemperature of the beam rises to 37⁰C. What is the compressional force FN on the beam? The coefficient of linear expansion of steel 1.1 × 10−5?C−1 and Young’s modulus of steel is 2 × 1011 N/m2. Answer in units of N.
Engineering
1 answer:
il63 [147K]3 years ago
6 0

Multiply the coefficient by the change in temperature:

1.1*10^-5 x (37-5.2) = 0.0003498

Multiply Young's modulus by the area by the above answer:

2*10^11 x 52 * 0.0003498 x (1/100)^2 = 3.63792 x 10^5 N

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Option A - fail/ not fail

Explanation:

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3 years ago
A circular column is fixed at the base and not supported at the top. If the column needs to be 15ft and hold 10kips, what is the
muminat

Answer:

The required size of column is length = 15 ft and diameter = 4.04 inches

Explanation:

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Length of the column, L = 15 ft

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End condition as fixed at the base and free at the top

thus,

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now, for aluminium

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Now, from the Euler's critical load, we have

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3 years ago
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A circuit has a source voltage of 15V and two resistors in series with a total resistance of 4000Ω .If RI has a potential drop o
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