1.3i.
The infonnation on a can of pop indicates that the can
contains 355 mL. The mass of a full can of pop is 0.369 kg
while an empty can weigJIs 0.153 N. Determine the specific
weight. density. and specific gravity of the pop and compare
your results with the comjsponding values for water at 20 .C.
Express your results in 51 units.
V);'.1Af c.,c,c!",,'d
,,",~Yu;t'~I ,ft"';rJ'
y =
w~/!hf
"I
cJn.r
(/)
&. fS3 /II
VtJ/lflnt'
c/ -PAllIA'.:" (""55)( /b-3L) (;tJ-37.3)=
77,II~ 1"~#1 Ett. (I)
(J =
I.3. J,Z /II -tJ.
I 1-
,
1=
.i'S-S;(
/5'3 N
I 0 -,~
=
3
:I~-Sx'ltJ-'/m3.
<f 7 7 tJ !]!.3
-/))f
9'770;;;3 -D9iP ~/??1't =-9'16/)t13
~
=
--7
r J J .!:!:!!
c
oS~
!!:oJ
I
:Sb=
Ft'y
/.,0119
",,3
20.C
1
'17 8"1~3
tSx 0 T
/?If)
edllJ1/4'I"ls'lJJ~/1Ae5(,
/ZI".. 1'7,e.
/111-'= (J.11'
t@'fOC
I</"'t~ d
r
j).
-f'i"
-
~}
(.5e~ ~J/e 8. Z I~ A[JffHJ,j(.8)
...0
= fYIi'.2 ~
(/f,.l>
)111/1("[,("
.56
= 11.If'tfKZ
1hf3 )
N.Jk.I:/Y'wiTh
.5htJJ{/-s '1Jt_1 1'71~ ~c;~c
1),"Se
t..)( I};' 1..>
~H!,( ~(I:..c;C' .7;-"11"'" .::pt::.1/;e /,6p alo-e a/I
jp ffY '1h"11 1ne ee>rres/,"I1d,ny J/t1/IlPs,c"r UI~r
.:
t
1-1 ;'
I"""
V
1.3'1- If 1 cup of cream having a density of 1005 kg/m) is turned
into 3 cups of whippedI cream. determine the specific gravity
and specific weight of t/le whipped cream.
I1It~S
6,c crt"""'!1
t.JhfY< ¥,...,
1)?'1 .:-
/
~~ lum~
1-28
~[!OPb/>17-'
IC (-V~,.b
1.36 Detennine the mass of ~r in a 2 m3 tank if the air is at room
temperature, 20 'C, and the Ibsolute pressure within the tank is
200 kPa (abs).
'
where i V.: Z rn3 and
wHh T ='.20'C =' (20 "'~73) K~ 2.Q3K
anti. p:
Th'Jsj
2QokP4 ='"200)'/03 ~2.
I
i
~.: (ZOOX/O3~) [(2.g69XIO1.~)(2q3K)J
..kq
-2.38
~
fI!
Hence)
'I
I
fYI==pV= 2.38~I(Z11J3)# ~~~
I
1-2q
I. 'IZ
1.42 The helium-filled blimp shown in Fig. PI.42 is used at various athletic events. Detennine the number of pounds of helium
within it if its volume is 68.000 ft) and the temperature and pressure are 80 of and 14.2 psia. respectively.
W=
at!
T/JIIJ)
where: 'V:::6~O()()r/~alld
" J.
fl
O~P:t:::(f/RT),
~
t = [IJf.2.*~ (IJflf~)/«/,2.Jf.2XIOJ,l~)(80-fIf"O)'R)J(.32,2.~)
Hence.
iI
/-33
~
t1nd
F"pn, 746/~
:: (5;(./0
I -5"
N
lif
-2.
.S
,~
;1n~
I-lJ.n
11,..,-
~"..'"
1-~o
':L
1
T
For con.s-tQnfspeed} V;Jof +he fi1/dJle 'p/4fel fhe net force
on the plafe is O. HeIJCB} Ff,p:: rbolloltlJ wh~l'e r~?"II.
Thfls./ the sheaf .r1t'B.rSon fhe Iup allot hot/om of fh~ pl41e
m /lor+ be equal,
"..
't,p
-"")..
,/~
-(boHom
I')- ~ 11. rj,1J,
WfJCI'e
I
r
For Ihe botJofYI
flfJid ~::
ay
Hence J from
[qll,
£/)
"dY"
-¥CD
I
:: ~L
while {,r the lop flviJ d.r!!!Y
h-clJ
C/J}
v,
,L. h
h
.H
.
( 2;; ) b(l:C)
(V -V;) :::C)l ) -;;r;
J lAIr/It: can e VIr! en as.
2.cV-zcV,
or
'v:I
V
::~-c~
~ Co
-~
,ii'"
1
i:kj
1W~
-cfl
-
v;
~-~
---
;~v
0.8
V
/'Iafe: If c = 0 :::!J.
~0
J V
Ifc#~ I .\:!!.=!
V.3
0.6
'
L;I
0.4
If c. ~ /} Yyt = ,
0.2
0
0
0.2
0.4
0.6
c
1-5'1
0.8
1
1- 5'f
59
I
1-