光的折射，想問通過法線不就直線出去嗎，為何需要再折射，感恩各位大大~

(A)甲 (B)乙 (C)丙 (D)丁。 空氣 玻璃 空氣 甲乙 )一個半圓柱狀的透明玻璃,AB線段為其橫截面積的直徑,點為半圓的圓心。 若有一條光線自空氣中對圓心點射入此玻璃柱,則下列何者為光的正確折射路徑? [明正106] (A) (B) (C) (D) A B A A B ☆ )取凹透鏡與凸透鏡各一面,在兩鏡之間的焦點 F2 重合,同軸而立, 則下列各圖所繪光線經兩透鏡所之路徑何者正確?(F1、F2、F3 均為焦點)

第29題，不太懂題目的意思 謝謝~

2 zab=14 ab=1 29.已知四個面積分別為3x²、x、12x、4平方單位的長方形,在不重疊的情況下,這 四個長方形可以緊密排出一個大長方形。則此大長方形的周長為 (x-1)-3(x-1) 30. (1)因式分解(x-7)²-3x+21=. (x-1)(x-10) 。 (210-7)-3/21

第28題，感恩各位大大

12 28.若a+b=6,a²+b²=22,則a²b+ab+ab²-a-b-I 的值為 2ab=14 ab=7 29.已知四個面積分別為3x²、x、12x、4平方單位的長方形,在 ALEÍK. BUK★ERKNE

因式分解，第27題，感恩各位大大

26.分解 2a-ax+4x=29x2 -x-1)(51) 27. 分解 5x-5x²-3x²-2x-2= 42 28. 若a+b=6,a²+b²=22,則a²b+ab+a

為什麼第一題不能選D 求解😭🌧️

最…的 【例】 Ns. (that+子句.ed : It is the tallest tree in this park. (它是這座公園裡最高的樹。) 2:Molly is the best of all the players. (Molly 是所有選手中最棒的。) 3:Ella is the prettiest girl that I've ever seen. (Ella 是我看過最美的女孩。) A+be動詞+the+最高級+in+範圍. New York Taipei Los Angeles London 比較級用all時,是指 主詞與其他所有比較 對象的比較,因此 all要接複數名詞 「最高級 =A+be動詞+比較級+than+ 與比較 |級互換 =New York is bigger than all the other cities in the world. (紐約比世界上所有其他城市來得大。) 圖:New York is the biggest city in the world. (紐約是世界上最大的城市。) +in+範圍. a =New York is bigger than any other city in the world. (紐約比世界上任何其他城市來得大。) { 土 f any other+N all the other+ Ns 容 Tokyo for two hours New York aflama Taipei London Los Angeles 205 立即 充電題 B 1. Sally is smarter than (A) all the kids (B) all the other kids單 (C) any kids chocola 五姓).Won vrgaud anilost : in her class. And she gets the highest grades on all the tests. ·對容, ut litle mone Took olted ated ti let ot beard ordi ni tattud smoz lug: (D) any other kids 和美要來區 C) 2. If you want to see the sun rise, you can go to Mt. Ali. It's. D (A) very beautiful (B) more beautiful 三 (Bi happily place to see it in Taiwan. 中 ejal. Jsheb has rosisb guiding eal nore happily (C) the most beautiful 15g mud (D) much more beautiful (選。 won mor og worg 來自天) smoood 3. In the four-person game, if you get me USA points, you will win the game. (A) more 元左?用口(B) better eg mutamouad

初學 光的反射，感恩各位大大

(C)粗糙面所產生的反射光線,仍需遵守反射定律 (D)入射線、反射線、法線不一定會在同一平面上。 )如圖,A和B均是平面鏡,且其夾角為130度; 今某光線與A面夾30度角入射, 請問此光線在B面反射時之反射角為幾度? [大有108] (A)20度(B)50度(C)70度(D)110 度。 ( )下列光的反射路徑,何者錯誤 光 60 30° 60 A 130 B面 (D 巨

請問這一題的答案為什麼是D F

ritiw SS Pijeria to or allotion2 VI. 混合題:11% belowna Dear Ms. Louise, ES igo navig at Inabula giov si noi28050 IS zult no sm amoji lutoau *ani 2009 zinTsao botob yilutiolos & wod Today was my precious little girl's first day of high school. She was thrilled that she would finally *sobiva on meet her new classmates. But when she woke up, she found that she had a big red pimple on her nose! She was so worried about it that she told me she didn't want to go to school. I knew that she felt embarrassed about having a big red zit on her face, especially when she was about to meet new friends and wanted to make a good impression. However, as a mother, I just couldn't let her miss the first day of bus b school. So I made her go to school this morning. Did I do the right thing? raumit by Dear Worried Mother, ent rod to bend of abia Worried Mother loqua bna s Turovuce sonsbiva no augus A I think you made the correct decision. Though her concern about making a bad impression on her new friends is understandable, she needs to learn that most people focus only on their own problems and 000000 uroc (賣)

第10題 感恩各位大大~

積為 平方單位。 10. 在坐標平面上,x、y坐標皆為整數,且與原點距離為13的點,共有 11. 右圖是小新住家與學校之間的路線圖,若今天小新 想從住家走直線去學校,請問小新所走的最短距離 an 學校 (0.0) 個

這兩題都不會 感恩各位

(0,5) 4. 如右圖,矩形ABCD中兩對角線AC與BD交於O, DPLAC,且AB=8,BC=6,則OP= A P 5 N36+64 =5 10 5. 如右圖,矩形ABCD中,AB=4,BC=3,E、F分 8 B 5 D C 4

想問一下這題要怎麼算🙇‍♀️

A model is based on an assumption that an additional year of education increases a student's future wage by 20 percent. 4) Refer to the scenario above. The hypothesis of the model is that 4) A) college graduates will earn about 80 percent more than high school graduates B) college graduates will earn about 107 percent more than high school graduates C) college graduates will earn about 200 percent more than high school graduates D) college graduates will earn about 275 percent more than high school graduates