1971-11-24 — Page 24

夏四⺾張六第 日七初月十年幸庭夏 WAH KIU YAL PO

報日橋

育教僑華

....

1972英文中學會考試題預習專欄

堅道英文書院主編

物理科

(四)

Let che distance of point of suspension TO

ground be tim. and the height of the bob-above ground be x 0.

Then geri-od

Part of the aus pena Ton:18 cut off: ed that height of the bob above the ground

Then

Prom (1)

Similarly from

(iv)

Equating (111) and (av

(2 + 12-13)2)

x 30

三期星日四廿月一十年一七九一屦公年十六國民華中耳教德華

3,每附商場選地盤,先麽一蟎是

·裝航設调修越 入方 豆虎 保行曲大厦 去

劇 雀豹 條 电新惟濕

参棄,於中

世日期】

各三發酒,有比於劇:已杂,堪部城假 『能混的上互的不热,我。,體積及份號 ,天下大堂上我們丙物映,是

我院

地方拍了一把片後,於海中分來開堪卌,不

合营

做以為無子, 女色很美近公營,健呪外有一做”而 张,以及引皇子。而美人鱼主》衣吧。來

列

且無際

,而且演員人歌大,美女,在三方

x. 30

窗

brea:01

top of tank,

1.0003

3600

7200

們

韓日風光

(庚) 歌劇勝地的實塚

第翩。零下雅多

的叫該場干的

【百處

兩區,

界的著歌舞團,蒽店可開。我們是陷 運四百落之多,卻裤可無罪大,所演唱的市括世 瑪由十至二,二张的蕃六院 下午一時至西路一爾斯日期

HE

PRINCESS MERVAD). IKINI.

某國與子生日之夜,作上億美

加入

The ratio of scceleration placea are 1.0003 11:

gravity at the

(4) (a) PaBoal'è law states that when any part of.

confined fluid re subjected to pressure, the: pressure 18 transmitted throughout the fluid. equally and undiminished in every direction.

(b):Radius of larger piston. = 0.5

area of piston

-7 = (0,5)2

boad on the piston

400

(12

0.00031416)m

of the tari

0031416) x 10 z 1000

119,997 kg-wt.

The force on the bottom of the tank

56,000 kg-wi

Che force on the

the tank

9,997. kg-w.

Pressure

200.

Hence the acceleration due to gravity (g) for pendulum suspended from inaccessible point can be found

this pathod,

Let the radius of smaller piston be

Load on the piston 0.25 kg-wt.

Let the

than

the length of the pendul

27/2

When

doublad.

18 increased by

(11)

Sabeti tu te

The original time of oscillatio

19,8

Pressure

Pascal's

400.

π = (0.3)?

0.25 ± (0,5)2

400

Let the larger, piston moves

Bork done on moving

work'done on moving: smaller piston

0.0125

0.25 x 0.16 joules"

conservation of energy give

The prin

:4000

x 0.16

Answers toʻmul ta ole cho

ques trona:-

(2)

(c)

(4)

(5) (0)

Problems for next week

(5)(s) What are the conditions for the equilibrium

the action of coplanar för deg?

body

A in form rod AB hinged co a wall,

4

As and is held horizontally va string 08-attached to a hook at. D. The angle ADB 18 50 per 10 kg-wie is suspended at B Find the tension in the string, and the

口

The rad of the smaller piston

The larger piston moves 0.01 cm.

(b) Pressure at the bottom of

1000 kg-v

the bottom of

0:000

x 60 x 30

x 12 x 1000

156,000 kg-wt.

rreagurevon, une

the Tank

10.x 1000

(a) If the coeflycient of

the table all (Fig.2), calculation the ation a of the block (the pulleys are smooth:

Two inclined planes intersect in a horizontal line and make with the horizontal angles of 60° and 30° respectively. A string pasess at right angles over the Line of interaection and support. masses of 5 kg. on the first plans and 6 kg. on the second. planes 、 The masses are just on the point of sliding, the 6 kgy mass being on the point of moving upwarde, Find, to 2 place. of decimal, the coefficient of friction between the planes and the masães, if it be the same for both and if the planes exert no frictional force on the string.

No. of DBcillations in one day

Period of eeconde pendulum (T) - 2.

24 x 60 x 60

Pariod at another