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The beam is constructed from three boards. (Figure 1) The allowable shear stress for the wood is τallow=335 psi. Each nail can resist a shear force of 395 lb. Part A Determine the maximum loads P tha...

The beam is constructed from three boards. (Figure 1) The allowable shear stress for the wood is τallow=335 psi. Each nail can resist a shear force of 395 lb.

6 ft 6 ft 6 ft 1.5 in 10 in 12 in 1 in. 1.5 in 6 in.

Part A

Determine the maximum loads P that it can support.

Express your answer to three significant figures and include appropriate units.

Part B

What is the maximum allowable spacing s of the nails used to hold the top flange to the web? (Consider only regions AC and BD.)

Express your answer to three significant figures and include appropriate units.

Part C

What is the maximum allowable spacing s of the nails used to hold the bottom flange to the web? (Consider only regions AC and BD.)

Express your answer to three significant figures and include appropriate units.

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