Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
물리학에서 스칼라는 크기만 있는 양을 의미합니다.mullihakeseo seukallaneun keugiman itneun yang-eul uimihaebnida.In physics, a scalar refers to a quantity that has only magnitude.