The load that can be supported by a rectangular beam there is jointly as the width of the beam in the square of its height and inversely as the length of the beam a been 14 feet long with the width of 4 inches and the height of 6 inches can support a maximum load of 800 pounds if a similar board has a width of 9 inches and the height of 5 inches how long must be to support 1400 pounds

  12.5 feet

Step-by-step explanation:

The description of the load-carrying capacity of the beam translates as ...

  load = k·w·h²/l

Filling in the numbers, we can find the constant k:

  800 lb = k·(4 in)(6 in)²/(14 ft)

  k = (800·14 lb·ft)/(144 in³) = 700/9 lb·ft/in³

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Then the length to support 1400 lb with the other given dimensions will be ...

  1400 lb = (700/9) lb·ft/in³ × (9 in)(5 in)²/l

  l = 700·25/1400 ft = 12.5 ft

The beam must be at most 12.5 ft long to support 1400 pounds.

it should be a and d. lmk if i'm wrong xd

the answer is thin because within context, the stanza concludes the and frail tone the people have toward each other, and the fact that it would be thin, makes the most sense compared to "pliable" or "not hard or firm to the touch". hope this , good luck.

step-by-step explanation:

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