A rectangular air mattress is 2.10m long 0.48m wide and, Ask an Expert

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Q. A rectangular air mattress is 2.10m long, 0.48m wide and 0.09 m thick. If it has a mass of 2.30 kg, what additional mass can it support in water?

Q. Consider a meter stick with 4 masses hanging on it. The first mass is 100.0 grams and is at 10 cm. The second is 50grams at 60.00cm. The third is also 100 grams, but is at 60cm. Where is the fourth mass (200 grams) located?

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