第二第張四樂
日五十月四年午丙書室
WAH KIU YAT PO
中中會考物理科答案 (續) 蔘金明
試題解合二)
華僑教育
商台升中輔導英算科 梁永基主講
播出日期第二台:六月十三日下午七時至七時半
61b, of tas at 1a, ta, per 28,ù 6 = 16, 18, a
Bib, of tus at 20. per 1b,
1 lb. of tes at da. pər ib.
101.
The Entol value-m Da, é 20%. + 51, w. 90#..
Therefore, the Kwkerage value per lb. of the afetars
8015
Arievert "The average price of the mixture per 1b. is 2 0,
2094
The total age of tho' & boyas
6'x 22' 132
The total, nge of the first four 4x20=
Ore de 23, and so the age of the other de
Annave" "The mưa nữ the other ana 3u 29,
1 2ha bakal nga st & non mĀJ
The Reti nga að 3. vong By
Tharifæru, She required KYKYAKE BES
九具船在两座平行高压之间,鸣炮一响,4秒 钟後聽到第一间回产6秒鐘後聽到第三份 回声若在空氣中户速為120/沙則 (10)船由一高崖之距离為 2240呎
鲜撞
()船每另一高崖之距离為3360 呎 (C)两座高荘之距离為5600 呎.
距离=声速x時间 故船与导-高崖之禾田距离=112014
= 4480呎
船与手-高座之距离= 2240呎 船与十二高崖之谏回距离= 1120×6
日三十月六年六六九一层公年五十五國民高中
青教僑事
洁,尤线经过近視者眼球後所成之像是在週膜
之前,要矯正近視眼應用凹透鏡 光线经过透視者眼球後所成之像是在網膜 之後要矯正遽说哏應用凸透鏡 滿設西磁極在相隔某一距离時彼此间之作用
力為F達因,如該兩磁極之強度的增加一倍, 而其距离則減少一半,彼此间之作用力将度
16F 建因.. 解释
F =
m
m2 = am,
The average cost ner book
änmeras". The zotnired average saxt yer bask
Exercise 13
(61) Find the simple Interest on, £2,400 for
years at 596. Flad the amount
After 3 years too.
(2) At what time will £20 amount to 20
guineaa at 49% pat (3) Find the rate per cent. p.a. if £1,500
yidde £180. Intercat în 4 years, (4) Find the rate per cont, par annum if
£1,250 amounts to £1,325 in 3 years, (5) Find in what time, £300 will amount to
£372 at 45% per annum?
(2)
(3)
(4)
76720呎
西高崖之距离
-240-3360
5600 bp
(4)声音之速度而停播介質之弹性及密度有阅通 常在固体分真理速度最大,在確修命值望速
幾以45°入射角射入於玻璃方体AB 面如右番所示,設玻璃之折射率為何 到
R為60度
山玻璃之臨界同為45度
G光纸 将為中直侧面0所全射
(8))
解释
10
(6) Find in what time £l,000 will yield
£280 Interest at 7% p.m.2
(7) Find what sum of money will yield £96
intercat In 8'years at 6% p.a? (8): Find the rate par ceat, p, s, if the
Intercat on EP for 1 years is £L
(9) If the interest on £50 for 3— years is
£7 171, 6d,, find the Interest on £400 Tor 6 months at the same. rate. (10) A man lends £600 at 4% pin. £800 at
How much interest docs he ive each year and what is the ayern” rate par cent, p. 8% of the interest on the ŝtotal mum of money Jent?
(5) mamaAn
(10)
Wamle 1
(CHAPTER FOURTEEN(第十四章】
Discount (FAX)
Car Is marked £850, but a discount for da. In the pound
allowed for cash. What is the cash discount?record
养,但若付更嗽,期鄋餘可得4兆会之粉柜分
La marked at £80, but the 20%. What price du paid by tha
淇 80 錄 : 但零售齒可選:20%之
價烧≤64號.)
<R÷45
故无线及AD面所全反射
一针。直立於西镜年面镜前平面镜遮蔽 凸镜下半部工店针。上半部在凸镜中 所成之傢、乙為針。下半部在平面镜中所 做之像若厶工,互相中合則..
四针中凸镜之距离為30厘米 ip心鏡之距南為《厘米
信阳平面貌距离
三傢面凭距离
面設磁針在地磁子午面内可兒一水平面而垂直
於磁子午面之軸自由旋轉則針静止後, 通常在北半球時,磁针之N極向下,在南书 球時極向下,磁针之軸和水平線听成 之角,称为磁倾角,在磁北極及極南極, 該商五度数為90.
解释,因地理之北極為地磁之南極,地理
之南極為地磁之北極
孟破棒在地磁场中作水平振擺時,其振动 週期之平子与磁場強度成反比例,而其 頻率之平方則有磁场强度成正比例,如 磕吩强度不变,則磁棒之磁矩愈大其 振动週期愈小,而其振动频率則愈大, 鲜释
式中下為振动週期 f应银动镇李 2.為铁棒之轉动惯量心為磁矩
在赛场内,把2x105 庫倫,要何從而空间 移动听作之工為900齑格則两点间皮 住差為45伏特,如几天一點讠事传局 6伏特另一點亊位可能為(0) 点仗特
(b) 105 伏特
解释
9=211000
W = 900尔格
45+6
9110
焦耳
4.5.12 $
=45优村
10.5 伏特
心如国内及面B,灯示電阻R成及電池速
结成-串路
R(欧姆)B(欧姆。
「雷電流流过電阻风及味設,為電流在 A所生之熱量,以為電流在所產生之 熱量則
(0)電阻串联如圖A時,HIK= R:R, (6)電阻並联 如面(B)時,4:42= &Hi 解释詨流过之電流為主,流过凡之廣流為上
discount
"allowed" for:
by
Is allowed
hat price is paid
针的凸镜之距离=针牛面鏡距西+10
=30厘米 像白凸鏡距离=像+5平面鏡距离-10
=10厘米
(C)
discount of 12%.
(3)
'a discount of
by the
T3) A shopkeeper giyew
for cain: At wh
vrice is an Aurticle
if the cash price is £4 86?
(4) A car is quoted at £400 in a wholesaler's catalogue, but the retailer only, pays £370 ross the trade discount allowed.
for it.
(1) at a percentage, (b) at so much in (a) (45)
A__manufacturer allows the retaller a› discount of 20% on the catalogued pridea What is the catalogued price of an article for which the retailer. £100 169.?
山口30厘米
5--10厘米
5厘米
H=0.04|ht = 004 TIL
H1 = H2 = 1, R; : L'Ai
Ricki
H:
:
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【三第張四第
夕日五十月四年午丙歷。
WAH KIU