If 1 cup of cream having a density of 1005 kg/ m3 is turned into 3 cups of whipped cream, determine the specific gravity and specific weight of the whipped cream.

휘핑크림3컵이랑 크림1컵이랑 질량이 왜 같음??
크림 휘저으면 증발해서 질량이같냐 ㅅㅂ??