Answer Happy

Question for Topic 3: How does a hot air balloon work Part 1) An object is dropped into water and starts to slowly sink. Select all of the true statements about the situation. The density of the water and the object are the same. The weight of the object equals the weight of the water displaced. The weight of the object is more than the weight of the displaced water. More information is needed to say anything about the density of the object compared to the water. The buoyancy force is equal to the weight force. Part 2) A seal is lying on a block of ice. The density of the block is pice = 916 kg/m°, the density of the sea water is Psw = 1027 kg/mº, and the acceleration due to gravity is 9.80 ms -2. If the ice sinks a further 1.07 m3 below sea level when the seal climbs onto it, what is the mass of the seal? m = kg Part 3) If the total volume of the ice block is 3940 m3, what is the total mass that it can support before being completely submerged? m = kg