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["매일 한 문제 이론 기초2

2020-03-22View Original

Thread Content

2τA=τπdt과 동일하게 원형의 직경과 정비례합니다.", "객관식 문제: 두께가 t인 강판 위에 원형의 구멍을 뚄기 위해서는 충력의 크기는 ( )
Reply #22020-03-22
C"과 동일하게 원형의 직경과 정비례합니다. 설명을 제출하면 추가 포인트를 받으실 수 있습니다! 답변을 제출하세요.", "C 충력
Reply #32020-03-23
C 冲力F=τA=τπdt,与圆孔直径呈正比。
Reply #42020-03-23
(C)与圆孔直径成正比
Reply #52020-03-23
(A)与圆孔直径的平方成正比

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