自然科學 大學 1年以上以前

答案都是8.79

9.21 A wheel of diameter 20.0 cm starts from rest and rotates with a constant angular acceleration of 3.50 rad/s². Compute the radial acceleration of a point on the rim for the instant the wheel completes its second revolution from the relationship (a) arad w'r and (b) arad = v²/r. =

數學與統計 大學 約5年以前

請問有人會這幾題嗎 求救！！感謝各位微積分高手

. Evaluate the volume of the solid generated by revolving the region bounded by y = 是二2二0三00andx二1aboutthe 和raxis . Find the volume of the solid of revolution formed by revolving the region bounded by the graph of andtheyraXis (0<y< DabouttherraxXis Find the volume of the solid of revolution formed by revolving the region bounded by the graph of 2x+sin忌 and the reaxis (0 ss 難) aboutthe yaxis. Find the are length ofthe graph ofy (e+全20 fromx二0tox