Recent content by martijn-arts

To be honest: I do not really understand buoyancy because of my knowledge of English. Would you please be so kind to give the right answer with the reason

That's where I got stuck and my knowledge was too old (it's been 10 years)

By the way, this should be the perfect question for you, looking at your profile picture :)

Thanks! I think lead because of the difference in kg/dm^3 of lead and iron and that of water. Lead => 11.3 kg/dm^3 Iron => 7.86 kg/dm^3 This is both in air. Water is 0.998 kg/dm^3 Am I on the right track?

On the flat bottom of an aquarium is an old fashioned balance. On one scale of the balance is a piece of plumbum, on the other side is a piece of iron. The scales are exactly in balance. Now we let the aquarium fill slowly with water, until the entire balance is under water. What happens now...