Answer Happy

Question 7 A 2-kg block displaces 10 kg of water when it is held fully immersed. The object is then tied down as shown in the figure, and it displaces 5 kg of water. What is the tension in the string? A) 10 N B) 20 N C) 30 N D) 70 N E) 100 N Question 8 The density of ice is 0.92 g/cm³; and the density of seawater is 1.03 g/cm³. A large iceberg floats in Arctic waters. What fraction of the volume of the iceberg is exposed? A) 0.080 % B) 11 % C) 89 % D) 92 % E) 99 % object -string Question 9 An object weighs 15 N in air and 13 N when submerged in mineral spirits, which has a density of 788 kg/m³. Determine the density of the object. A) 330 kg/m³ B) 500 kg/m³ C) 1.2 x 10³ kg/m³ D) 5.9 x 10³ kg/m³ E) 7.5 × 10³ kg/m³