問題詳情
20. 如右圖所示，某抛射體從100 m高的懸崖頂以斜角30°發射，其初速度為80 m/s，試問抛射體所能到達距地面之最大高度為何？(假設重力加速度g=9.81 
)
(A) 121.33 m
(B) 144.28 m
(C) 157.66 m
(D) 181.55 m 
參考答案
無參考答案
內容推薦
- 上下班的交通方式有很多種，其中包括：A.騎腳踏車；B.搭乘大眾交通工具；C 自行開車，請將前述幾種交通方式之單位排碳量由少至多之排列方式為何？(A)ABC(B)A CB(C)BAC(D)CBA
- 設一電路之電壓及電流各為 100∠60°伏特及 20∠30°安培，則此電路消耗之有效功率為多少瓦特？(A)2000W(B)1000W(C)866W(D)1732W。
- Howard: This is taking such a long time for a new cell phone.Ingrid: I know. _______________Howa
- 線圈之感應電流所產生的磁場，它的磁極會反對原有的磁極變化，這稱為(A)法拉第定律(Farady's law)(B)歐姆定律(Ohm law)(C)愣次定律(Lenz's l
- Frank: What are you doing tonight?Grace: I’m going to stay at home and watch TV.Frank: _________
- 二極體不能作下列那一項用途？(A)整流(B)放大(C)檢波(D)截流。
- 對於職業災害之受領補償規定，下列敘述何者正確？(A)須視雇主確有過失責任，勞工方具有受領補償權(B)勞工若離職將喪失受領補償(C)勞工得將受領補償權讓與、抵銷、扣押或擔保(D)受領補償權，自得
- 自行煮水、包裝飲用水及包裝飲料，依生命週期評估排碳量大小順序為下列何者？(A)自行煮水＞包裝飲料＞包裝飲用水(B)包裝飲用水＞自行煮水＞包裝飲料(C)包裝飲料＞包裝飲用水＞自行煮水(D)包裝飲
- 有關雙極性電晶體(BJT)和場效應電晶體(FET)兩種電晶體的比較，下列何者有誤？(A)在積體電路製作上，BJT 較 FET 佔較大的空間(B)FET 作為放大器產生的雜訊較 BJ T 為低(
- 關於金屬皮膜電阻之敘述，下列何者錯誤？(A)穩定性較高(B)體積較小(C)雜音較小(D)精密度較差。
內容推薦
- ▲閱讀下文，回答第 36-40 題With more than one billion Christians living in nearly every country around the wor
- ▲閱讀下文，回答第 41-45 題Everglades National Park, which was established in 1947, is the biggest wetland in
- 【題組】(A) pretended (B) introduced (C) merged (D) allowed
- 【題組】(A) at (B) for (C) with (D) to
- 【題組】(A) As a result (B) At most (C) At stake (D) On the contrary
- 有一不規則計數器，共有 4 個不同的狀態(如下圖)，由變數 x 控制不同的計數順序，則下列哪些敘述正確？(A)當 x =0 時，計數順序為 00→01→10→11→00..(B)當 x=1 時
- 【題組】What is the second paragraph mainly about?(A) To tell the legend of Everglades National Park
- 【題組】(A) Besides (B) Although (C) If (D) Despite
- 【題組】(A) decorated (B) promoted (C) obtained (D) contacted
- 【題組】According to the passage, which of the following do NOT support the conservation ofEverglade
- 【題組】Which of the following is closest in meaning to navigated in the second paragraph?(A) cruise
- 【題組】(A) dialed (B) topped (C) skipped (D) added
- 【題組】According to this passage, which of the following is possibly the passage adopted from?(A) A
- 【題組】(A) perhaps (B) never (C) indeed (D) uncertainly
- ▲閱讀下文，回答第 46-50 題Some people scream when they see a five-centimeter-long cockroach. Imagine seeing a
- Jason: How do you like the salad?Kelly: _______________Jason: Really?Kelly: Yes, but the soup ta
- 【題組】(A) buys (B) brings (C) sells (D) comes
- 【題組】According to the passage, what difference is described between dragonflies and damselflies?(
- 【題組】The word “they” in the last 3rd line of the second paragraph refers to ________.(A) cockroac
- 【題組】Why might dragonflies be considered a friend to humans?(A) They make good pets. (B) They are
- 【題組】According to the passage, which of the following statements about dragonflies is TRUE?(A) Mo
- 下列何者 屬於 MCS-51(8051)組合語言的假指令？(A)EQU(B)N OP(C)DB(D)ORG。
- C 語言程式中的 for，while 及 do…wh il e 三種迴圈，下列敘述何者正確？(A)do…while 迴圈是在測試判斷條件不成立時執行迴圈主體(B)do…while 迴圈至少執行
- 對一個 8-inputXOR 閘，哪些輸入情況可使輸出為 1？(A)10111011(B)00110111(C)11101110(D)01011110。
- 如下圖所示，下列敘述何者正確？(A)其功能為 NO R 閘(B)屬於 TTL 邏輯族(C)屬於 CMO S 邏輯族(D)其功能為 NAND 閘。