問一道力學物理題（英文） Two people are pulling a canoe on a friction surface，person A pulls at 60N{20度}and person B pulls at 60N{40度}，calculate the force. 請各位幫忙滴朋友一定告知完整步驟，中文即可，

RELATED INFORMATIONS

• 1. 一道英語物理題 A quarterback passes the football downfield at 20m/s .It leaves his hand 1.8m above the ground and is caught by a receiver 30m away at the same height What is the maximum height of the ball on its way to the receiver？
• 2. 英語物理題一道 turner's treadmill runs with a velocity of -1.2m/s^2 and speed up at regular intervals during a half-hourworkout.after25 min，the treadmill has a velocity of -6.5m/s.what is the average acceleration of the treadmill during this period？
• 3. 一道英文物理題 A 4kg body is placed on horizontalground.Thecoefficient of dynamic friction between the body and the ground is 0,2.The object is acted upon by a force of 30 N that encloses an angles of 20 whithhorizontal.Findthe friction force and the acceleration of the body.
• 4. 一道英文的物理題 Which of the following is a torque expression？ A. 􀀁；= ma B. 􀀂；= m􀀁；v C. 􀀂；= vsinA􀀁； D. 􀀂；= FsinA*d 翻譯一下，還有答案是哪個？
• 5. 英語翻譯 Although the 532 nm（green）wavelength has the lowest absorption in water，generating the 532 nm（green）or 355 nm（ultraviolet）wavelengths with harmonic single crystals from 1064 nm laser pulses reduces the laser pulse energy output by a factor of two or more due to the conversion process and to associated inefficiencies.
• 6. 英語翻譯 She smoothed her down with a wet comb，wiped her muddy shoes，and thought about the three months she had known him.
• 7. 英語翻譯 The capital of Berlin，as the seat of the Allied Control Council，was similarly subdivided into four sectors despite the city's location deep inside the Soviet zone
• 8. 英語翻譯 這個遊戲在哪些國家銷售 茶葉在中國的南方種植 報紙上的這篇文章涉及到當地政府 在我過了所有的關後，會發生什麼事 這次舞蹈俱樂部的活動組織的很好
• 9. 英語翻譯 Delete the newly applied load on the modified beam，and use the the pin support tool to put the right support backagain.Nowreplace the left fixed support with a pin support tool.
• 10. 力學定義式是什麼？
• 11. 英語翻譯 1、你遲早會成功的 2、她一定會因這部著作而獲得榮譽 3、她昨天晚上昇了一個健康的嬰兒 4、他的心臟病沒能封锁他第二天去上課 5、認識從實踐開始 6、他為什麼做那件事依然是個迷 = =不要用翻譯網來整我，我知道不准的. ，明天就要交了.
• 12. 英語翻譯 1.我想知道你是否會為他們取得的成就向他們表示祝賀. 2.由於這個島之後乘船才能到達，所以我們不得不放弃我們的計畫. 3.我想祝他在新的工作中一切順利 4.我希望在會上能碰到我的老朋友 5.他建議我們為假期帶足食品 6.她努力工作以此來活的父親的的認可 7.這家公司獲得了和去年一樣豐厚的利潤 8.住在這個社區對我來說會更方便點
• 13. 英語翻譯 If the wrench does not turn when the load is applied to the handledetermine the torque or moment applied to the bolt and the force of the wrench on the bolt.
• 14. 英語翻譯 對於他們討論的話題，約翰保持沉默 幾年的學習之後，簡愛變得更博學了 對於她粗魯的言辭我一點都不感到驚訝
• 15. 英語翻譯 A skier travelling in a straight line up a hill experiences a constantdeceleration.Atthe bottom of the hill，the skier has a speed of 16m/s and，after moving up the hill for 40 s，he comes to rest. Find: a.the deceleration of the skier. b.the distance from the bottom of the hill to the point where the skier comes to rest.
• 16. 英語翻譯 請大家幫我翻譯這句話.並解釋as的意思和其它用法. Don't eat snacks too close to meal times as this discourages you from eating your main meals
• 17. 英語翻譯 To love and to be loved is the great happiness
• 18. 英語翻譯 5道英文選擇題，小人請達人們來線上解答，謝謝叔叔阿姨奶奶爺爺的拉 1 Improper food can damage your hair，[ ] A so can the stress in life B so the stress in life can C neither can the stress in life D neither the stress in life can 2 I can not sleep because it is [] A too much hot B much too hot C hot too much D hot much too 3 Not until I began to work[] how much time I had wasted. A didn't I realize B did I realize C I didn't relize D I realized 4 So[] that no fish can live in it. A the lake is shallow B shallow the lake is C shallow is the lake D is the lake shallow 5 Little[] about his own safety，though he was in great danger himself. A does he care B did he care C he cares D he cared 還有這種題目是什麼類型的呀 首先感謝5比特的回答，大家不要急於回答，看看自己回答得是否有問題。
• 19. 寧靜的英文單詞是什麼？ 如上…
• 20. 如圖所示，半徑為R、質量為M的均勻球靠豎直牆放置，左下方有一厚為h、質量為m的木塊.若不計摩擦，用至少多大的水准力F推木塊才能使球離開地面？此時木塊對地的壓力為多大？