@andrew I agree w/ suggestion - if the buoyant force is less than the object’s weight, it sinks. If buoyant force is more than the object’s weight, it floats. Weight itself is calculated by m * g, which is why the OP corrects for this card by multiplying gravity by mass at the top
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Support, there will be a ton of small mistakes like this so if its a glaringly obvious mistake which can be easily referenced by sources, you can have a lower threshold to accept it