Чему равна архимедова сила, действующая в воде на тела объемом 125 см3 из стекла, пробки, алюминия, свинца

Hi my dear aunt Barbara Grey. I decided to write you the letter and to tell as I live. I'm fine, I am healthy and I am not ill. My wife Anna came to work recently. It began to work as the seller in shop. My son Vadim went to school. My daughter Sveta goes month to a garden. We live in peace and friendship and is happy. We very much wait for you on a visit. To a meeting aunt Barbara Grey.