年級

問題的種類

物理 高中

大家好 想請問第二小題要怎麼計算! 謝謝🙇🏻‍♀️

DAY 發生彈性哩輸里 3m₁ √√2gh+m₁0 = 3m₁0₁²¹ + M₁0₂ 方13m(zh)+0= 2:3mz²m- Nigh 兩物體碰撞並與彈簧作用的運動: {} (V₁ = 2 → 在下滑過1.大小相同的甲、乙兩個均勻物體,質量分別為 3m、me 甲物體自靜止沿固定於地面的 ·V₂ = 232312gh 光滑曲面下滑後 ,與靜止在光滑水平地面上的乙物體發生正面彈性碰撞,如圖11所示。 若甲物體的質心下降高度為 h,重力加速度為g,則碰撞後瞬間,甲、乙兩物體的速率要 夏度,高度, 各為多少?(以m、g、h表示)(4分) 经网 于題配分標於選木。 守恒,长 20+ Brah = = 0,²10 Ex g (0) 乙 甲 r ・27・ 乙 000000 > 已為法 A型 2: 圖 11 圖 12 承第1小題,碰撞後隔一段時間,當甲、乙兩物體相距r時,乙物體恰正向接觸前方一 處於自然長度、力常數為 k、右端固定於牆壁之理想彈簧(其質量可忽略不計),如圖 12 所示。乙物體壓縮彈簧後反彈,當作簡諧運動的彈簧第一次恢復至原自然長度時, 乙物體恰與甲物體發生第二次碰撞。 (a)乙物體剛接觸彈簧時,甲、乙兩物體間的距離r為何?(以m、g、h、k表示) (3分) (b)在乙物體與甲物體發生第二次碰撞前,從彈簧開始接觸乙物體至彈簧到達最大壓 縮量時,彈力對乙物體所作的功與最大壓縮量之值各為何?(以 m、g、h、k 表 示)(3分) 网

待回答 回答數: 0
英文 國中

英文 國二 填空 求解

1日 1 fil DETECTIVE'ALIBI The police believe that this man took part in a robbery in London last weekend. He tells them that he was not in London at the weekend. His alibi is that he was in Scotland. Atay (8932 W. H. SMITH AND SONS HEATHROW AIRPORT BRANCH FILE 341 00.75 Magazines 00.20 00.50 4-6.93 8932 BRITISH AIRWAYS T 01.45/ ODEON CINEMA O EDINBURGH STALLS £5.00 LONDON TRANSPORT UNDERGROUND HEATHROW AIRPORT £1.30 7430921 4.6.9313 vvv Bag CUMBERLAND HOTEL /4393 20 Princes Street Edinburgh 476/93 5128 LATEST SINGLE EDINBURGH 085 4212 57431 British Airways ANDERSON/B.M.R 4/6193 4-6.93 FROM LONDON YE/W BA 612 4/6 18.55 EDINBURGH £82.00 TO FARE GUESIMC B. Anderson f60.50 LONDON 6400 ROOM No. 351 NIGHTS 2 4740 AV KINGS CROSS 6 JUNE 93 FIP 68140 SUNDRIES ZEE te VAT INCLUDED MACDUFF'S BOAT. HIRES hall day 17.20 UST. ANDREWS EDINBURGH SCOTLAND TAJ MAHAL RESTAURANT 4/6/93 Meal 16-20 Drinks 3-40 79.60 SERVICE NOT INCLUDED HEATHERXSELF- DRIVE CARS LTD Depostt/ Bedeset. 56/93 40.00 paid by cheque. Name of Customer Anderson 140/00 ENGLAND LONDON WHAT'S HIS ALIBI? HEATHROW Look at the tickets and receipts. Then, fill in the missing words. Heathrow Airport V ..some ch On Friday travelled by tube to at the airport. I then..... .to. ..on a British Airways flight. .........Vi.dinner at the W..restaurant in Edinburgh. After dinner ... .a film at the Odeon Cinema. My ticket...... .£.. On Saturday morning ........ .at the Cumberland Hotel in Room................h va va deposit of ...a car and ..to St. Andrews. I..... V.fishing. In the evening .... V ..to Edinburgh. On £............ In the afternoon I...... Sunday morning .... the 10.55. ..to London. I..... .back in London at 17.05. Use these verbs: hire cost fly have arrive drive travel See return buy stay catch pay go © Colin Granger and John Plumb 1993 59 4OTOCOPIABLE

待回答 回答數: 0
1/4