역학적 에너지 전환과 보존 문제풀이 (updated 2024-11-06)
Duration: 16:05
91,1K weergaven | 24 sep. 2022
91,1K weergaven | 24 sep. 2022
Duration: 20:19
171,8K weergaven | 15 sep. 2022
171,8K weergaven | 15 sep. 2022
Duration: 19:20
164,1K weergaven | 27 sep. 2022
164,1K weergaven | 27 sep. 2022
Duration: 1:32:47
1,8K weergaven | 20 dec. 2020
1,8K weergaven | 20 dec. 2020