Simple Logic Gate Homework: Complete Truth Table

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The discussion centers on completing a truth table for a combination of logic gates. Participants express confidence in their solutions but seek validation due to the absence of a reference answer. The focus is on ensuring the accuracy of the truth table. The conversation highlights the importance of peer review in verifying homework solutions. Overall, the thread emphasizes collaborative learning in understanding logic gates.
moenste
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Homework Statement


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Complete the truth table for the simple combination of logic gates shown above.

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2. The attempt at a solution
I think this should be correct, but just want to check, since I don't have a book answer to compare:

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Looks fine.
 
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The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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