[填空题]
A piece of aluminum with a m+-l4cw(l zor ()ecfp oass of or8s 7wzv3uou7+1 at5z jq0yb1.0 kg and density of is suspended from a string and then completely immersed in a container of water. The density of water is . (a) Determine the volume of the piece of aluminum (fill in numerical value only) (b) Determine the tension in the string after the metal is immersed in the container of water (fill in numerical value only)