年級

問題的種類

自然 國中

求第十題!!!

0769-894 4281-8888 9801-0667 IN 重 801-8928 MIRAL 商品 门实 162 國中自然(四) (A)減少對地面的重力(B)減少對地面的摩擦 (C)減少對地面的壓力(D)減少對地面的扭力 月日 6. 坦克車以履帶與地面接觸而行,是為了下列何者? 7. 壓力的定義為「單位面積上所受的垂直作用力」 位,則下列哪一個為壓力單位? b A uni T(A)(B) (c) (D) a D? AB 王 A ,設a為長度單位,b為力的單 8. 有一長、寬、高各為5cm、4cm、3cm的木塊,密度為0.5g/cm²,當平放於桌上 時,產生的壓力最大值為多少gw/cm²? 5x44510.5 (A) 1.5 (B) 2 (C) 2.5 (D) 3 3x4 9.如右圖所示,一質料均勻的長方體鐵塊,若依序以甲、乙、丙 面接觸於桌子,三者對桌子的壓力分別為P、P、P丙,則 P甲: P乙: P=5.x ? 12: TS x :20 (A) 12:15:20 (B) 20:15:12 (C)3:4:5 (D)5:4:3 5×0.5 5cm 152 4cml 丙 20 3cm 10. 李平與李安兩人分別以500gw之力相向互推一截面積為10cm²的實心圓柱兩端, 則該圓柱所受的合力與壓力大小分別為何? (B) 0gw,100gw/cm² (C)1000gw,50gw/cm² (D)1000gw,100gw/cm² (A) 0gw,50gw/cm² 11 如右圖所示,一物體靜止 甲 5 在地面上分別受到大小相 等的甲、乙、丙三力,則 受到哪一個力時對地面會造成比較大的壓力? (A)甲(B)乙(C)丙(D)三者相同, 丙 乙 教室 16 如右圖所示,同一鐵 P甲、乙、丙,則三者 (A)甲=Pz=P丙(B) (C)P甲 <P><P丙 (D) B 活塞垂直施以46 1)12.如右圖,已知A活塞 多少 kgw 的物體 (A) 10 (C) 100 (B) 16 (D) 160 1)18 小武拿了一個氣三 下列哪種狀況? (A) (B) 1) 19. 若某水池的長 後的池底所受 (A) 2 (B) 4 )20. 如右圖,在青 向下壓力( 何? (A)PE=P下 (C)P下>P在 21 一容器裝 原本

尚未解決 回答數: 1
英文 高中

想問第9題 dedicate為什麼用vpp

Angela Duckworth, an American scholar, gave a TED Talk in New York entitled "Grit: The Power of Passion and Perseverance." The ideas in her talk were later made into a book with the same title, 3. was published in 2016. 4. years earlier, Duckworth accepted a job as a mathematics teacher at a public school in New York. Her talk details how 5. the years, her students gradually taught her that to be successful, natural intelligence alone is not enough. One must also possess what is known 6. grit. Grit refers to consistent effort 7. by a strong determination to achieve a goal. Through detailed research, Duckworth discovered that people with high levels of grit remain highly motivated to achieve their goals 8.giving up on them. In other words, someone with true grit will see himself or herself getting closer to his or her goal day by day. Therefore, that person will always be able to keep himself or herself achieving that goal. 团 重 9. 10. Her book Duckworth's TED Talk and book have since inspired millions remained on The New York Times' bestseller list for almost half a year following its publication. (C) 1.(A) what (B) which (C) how (D) why (B) 2.(A) so (B) such alne (C) very (D) same (A) 3.(A) which (B) it (C) that U (D) and (D) 4.(A) Few (B) Little) (C) A little (D) A few (5.(A) with (B) around (C) until (D) over (C) 6. (A) by (B) for (C) as (D) to be (B) 7.(A) drives (A) 8. (A) instead of CB) (A) dedicate B 10. (A) in turn (C) on their way (B) driven (B) regardless of (B) dedicating (C) driving (D) to drive (C) except for (C) dedicated (D) in addition to (D) to dedicate (B) around the world 興 Ho (D) around the corner

已解決 回答數: 1
1/653