Copy of Copy of 5BL Lab 1 Assignment Submission Template - W24v2 2
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5B
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Mechanical Engineering
Date
Apr 3, 2024
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5±!" !">?DFGLb 1 ²ssYiRWgnment
[ ;<AesenYi>?D !">?Dr>?D], [01/23/24], [!">?DFGLb 12eGHMctYion ³32], [±enGHMcSXh #7]
<URNK] SPVS]VSkjURNKLI ALILIVS]TQ x_nmpj jNKkjfg_]kjNKkj _] NKAJUR kj[VSLINK kjAsruNK mlURVSkj Akj A +±" SPVS[NK A]LI nmpfg[_ALI VSml ml_ x_nmpj
#jALINKkjJ_fgNK AkjkjVSTQ]\NK]ml
²GHMctYivYity 1 01esponse
:
(QKCDsurQK
tSXhe temper>?Dture oQVf tSXhe envYironment (>?DmFGLbYient temper>?Dture), tSXhe SXhum>?Dn FGLbody
(FGLbotSXh QVforeSXhe>?Dd >?Dnd under tSXhe tonRWgue), >?Dnd two otSXher oFGLbjeGHMcts Yin tSXhe room.
5QKLMGorOI
tSXhYis YinQVform>?DtYion Yin FGLbotSXh
>?Dnd
, >?Dnd RWgroup tSXhe Yitems Yinto >?D GHMc>?DteRWgory oQVf eYitSXher FGLbeYinRWg Yin or out oQVf equYilYiFGLbrYium wYitSXh tSXhe envYironment. 349sYinRWg
tSXhe SXhum>?Dn FGLbody >?Ds tSXhe system,
stCDtQK
tSXhe dYireGHMctYion oQVf SXhe>?Dt QVflow FGLbetween tSXhe FGLbody >?Dnd tSXhe envYironment >?Dnd
QKxpa[lCDYSic]n
wSXhy SXhe>?Dt QVflows Yin tSXhYis dYireGHMctYion.
Object
Temp ±)²
Temp ±&²
(quilibrium
'irection
(xplanation
(nvironment
³³´µ
¶·
—¸¸¸
—¸¸¸
—¸¸¸¸
+uman %ody
±forehead²
·¹´¶
º¹´»
Out of
equilibrium
Towards
environment
+eat flows out of the body because the
body is of higher temperature than the
environment´
+uman %ody ±under
tongue²
·¼´µ
º³ µ
Out of
equilibrium
towards
environment
+eat flows out of the body because the
body is of higher temperature than the
environment´
Object ½¶¸ &omputer
P&
³¼´¾
¶·´·
Out of
equilibrium
towards
environment
+eat flows out of the system because the
system is of higher temperature than the
environment´
Object ½µ¸ Wall
³³´µ
¶·
equilibrium
no heat flow
The wall is in equilibrium with the
environment´
²GHMctYivYity 2 01esponse: 349se tSXhe ´01 temper>?Dture RWgun to
b\mQKCDsurQK
tSXhe temper>?Dture oQVf your SXh>?Dnds FGLbotSXh FGLbeQVfore >?Dnd
>?DQVfter vYiRWgorously ruFGLbFGLbYinRWg tSXhem toRWgetSXher.
±ob\mpCDrQK
tSXhe temper>?Dture dYiQVfQVferenGHMce (YiQVf >?Dny) FGLbeQVfore >?Dnd >?DQVfter, >?Dnd rel>?Dte
tSXhYis to SXhow tSXhe temper>?Dture GHMcSXh>?DnRWge Yis provYidYinRWg YinQVform>?DtYion >?DFGLbout SXhow enerRWgy Yis GHMcSXh>?DnRWgYinRWg QVform.
5QKLMGorOI
SXhow
lonRWg Yit t>?Dkes QVfor your SXh>?Dnds to RWget FGLb>?DGHMck to tSXherm>?Dl equYilYiFGLbrYium, >?Dnd
QKxpa[lCDYSic]n
SXhow tSXhYis oGHMcGHMcurs.
*roup
0ember
+and Temp
%efore ±)²
+and
Temp $fter
±)²
Time to
(quilibrium
&aitlyn
·¶´¾
·º´º
¶¼s
Yesenia
·¿´¹
·º´¶
µ¿s
$lejandra
¾»´¹
¾³´º
¶¶s
"ow a[loc]nWQg OIYSiOI
YSit
tCD`ZkQK to rQKCDLMGXRh tXRhQKrb\mCDa[l QKquYSia[lYSiKLrYSiub\m:
&n >?Dver>?DRWge: 16 seGHMconds
°xpa[lCDc]nCDtYSioc]n:
23SXhe QVfrYiGHMctYion enerRWgy GHMc>?Dused FGLby tSXhe ruFGLbFGLbYinRWg toRWgetSXher oQVf
tSXhe SXh>?Dnds GHMconverts Yinto SXhe>?Dt wSXhYiGHMcSXh Yis wSXh>?Dt GHMc>?Duses tSXhe
temper>?Dture oQVf tSXhe SXh>?Dnds to rYise. ²QVfter tSXhYis YinGHMcre>?Dse Yin
temper>?Dture, tSXhe SXhe>?Dt oQVf tSXhe SXh>?Dnds FGLbeRWgYins to tr>?DnsQVfer
Yinto tSXhe envYironment Yin order to try to re>?DGHMcSXh tSXherm>?Dl
equYilYiFGLbrYium wYitSXh tSXhe envYironment>?Dl temper>?Dture
wSXhYiGHMcSXh Yis wSXhy >?DQVfter >?D GHMcouple seGHMconds, tSXhe temper>?Dture
oQVf tSXhe SXh>?Dnds returns to Yits norm>?Dl st>?Dte.
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²GHMctYivYity 3 01esponse: ²s >?Dn YinvestYiRWg>?DtYion oQVf sGHMcYientYiQVfYiGHMc questYion ±,
LMGoc]nsYSiOIQKr
>?Dn oFGLbjeGHMct tSXh>?Dt Yis not tSXhe SXhum>?Dn FGLbody,
FGLbut tSXh>?Dt >?Dlso SXh>?Ds >?D GHMconsYistently SXhYiRWgSXher temper>?Dture tSXh>?Dn tSXhe envYironment. ±>?Dsed on your results QVfrom >?DGHMctYivYity 2,
OIQKsLMGrYSiKLQK
SXhow you would expeGHMct Yits tSXherm>?Dl enerRWgy >?Dnd temper>?Dture to GHMcSXh>?DnRWge wYitSXh tYime. µow Yis Yit >?DFGLble to st>?Dy >?Dt
>?D SXhotter temper>?Dture tSXh>?Dn tSXhe surroundYinRWgs, even tSXhouRWgSXh SXhe>?Dt Yis GHMconst>?Dntly QVflowYinRWg?
² FGLboYilYinRWg pot oQVf w>?Dter SXh>?Ds >?D SXhYiRWgSXher temper>?Dture tSXh>?Dn tSXhe envYironment. ´t Yis >?DFGLble to st>?Dy >?Dt tSXhYis SXhotter temper>?Dture FGLbeGHMc>?Duse oQVf tSXhe
GHMconst>?Dnt SXhe>?Dt Yinput QVfrom tSXhe stove, wSXhYiGHMcSXh supplYies enerRWgy tSXhrouRWgSXh GHMconduGHMctYion >?Dnd GHMconveGHMctYion. µowever, YiQVf tSXhe stove were turned
oQVfQVf, some oQVf tSXhe SXhe>?Dt oQVf tSXhe w>?Dter would dYissYip>?Dte Yin tSXhe QVform oQVf RWg>?Ds. ¶ust lYike tSXhe SXhum>?Dn SXh>?Dnd, over tYime we would expeGHMct tSXhe
tSXherm>?Dl enerRWgy >?Dnd temper>?Dture to deGHMcre>?Dse FGLb>?DGHMck to tSXherm>?Dl equYilYiFGLbrYium >?Ds SXhe>?Dt QVflows out.
³Yiven tSXh>?Dt enerRWgy Yis GHMconserved wSXhen GHMconsYiderYinRWg >?Dn entYire system, wSXh>?Dt Yis tSXhe enerRWgy QVflow proGHMcess tSXhrouRWgSXhout
tSXhe entYire system tSXh>?Dt >?Dllows tSXhe SXhot oFGLbjeGHMct to st>?Dy SXhot?
$ow,
rQKa[lCDtQK
tSXhYis to tSXhe temper>?Dture me>?Dsurements
t>?Dken oQVf tSXhe SXhum>?Dn FGLbody, >?Dnd
QKxpa[lCDYSic]n
SXhow our SXhum>?Dn FGLbody Yis >?DFGLble to GHMconsYistently m>?DYint>?DYin >?D SXhotter temper>?Dture
tSXh>?Dn tSXhe envYironment.
23SXhe SXhum>?Dn FGLbody w>?Ds 94.1 deRWgrees · (QVforeSXhe>?Dd) >?Dnd SXh>?Dd >?D GHMcore temper>?Dture oQVf 97.2 deRWgrees ·. 23SXhYis Yis SXhotter tSXh>?Dn tSXhe envYironment
oQVf 66.2 deRWgrees ·. 12YinGHMce tSXhe enerRWgy Yis GHMconserved Yin tSXhe system, tSXhe enerRWgy SXhe>?Dt QVflow Yis equ>?Dl to tSXhe tot>?Dl enerRWgy tr>?DnsQVferred Yinto or
out oQVf tSXhe system. 23SXhe SXhum>?Dn FGLbody SXh>?Ds Yisol>?DtYion meGHMcSXh>?DnYisms to lYimYit SXhe>?Dt loss, >?DllowYinRWg Yit to m>?DYint>?DYin >?D SXhotter temper>?Dture tSXh>?Dn
tSXhe envYironment; tSXhYis Yis known >?Ds tSXhermoreRWgul>?DtYion. 12uGHMcSXh SXhe>?Dt-produGHMcYinRWg meGHMcSXh>?DnYisms YinGHMclude suFGLbderm>?Dl FGLblood QVflow >?Dnd sSXhYiverYinRWg.
²s tSXhe FGLbody produGHMces ²23-., 60 perGHMcent oQVf tSXhYis enerRWgy produGHMctYion Yis Yin tSXhe QVform oQVf SXhe>?Dt.
²GHMctYivYity 4 01esponse: 349se eYitSXher >?D SXhum>?Dn FGLbody, eleGHMctronYiGHMc devYiGHMces, >?Dnd/or lYiRWgSXht FGLbulFGLbs to
LMGCDpturQK
two (2) Yim>?DRWges
wYitSXh tSXhe ·!"´01 devYiGHMce tSXh>?Dt e>?DGHMcSXh YindYiGHMc>?Dte >?D dYiQVfQVferenGHMce Yin temper>?Dture FGLbetween two or more oFGLbjeGHMcts. ¸>?Dpture tSXhe
·!"´01 Yim>?DRWges wYitSXh your pSXhone GHMc>?Dmer>?D >?Dnd p>?Dste tSXhem SXhere.
·or e>?DGHMcSXh Yim>?DRWge:
²QKsLMGrYSiKLQK
tSXhe SXhe>?Dt QVflow FGLbetween
dYiQVfQVferent oFGLbjeGHMcts vYisYiFGLble, >?Dnd YindYiGHMc>?Dte SXhow tSXhese temper>?Dture dYiQVfQVferenGHMces were GHMcre>?Dted >?Dnd/or m>?DYint>?DYined FGLby
enerRWgy GHMcSXh>?DnRWgYinRWg QVforms.
*'CDKLQKa[l
tSXhe SXhottest/GHMcoolest oFGLbjeGHMcts Yin your Yim>?DRWges. (´QVf neGHMcess>?Dry, provYide >?DddYitYion>?Dl
dYi>?DRWgr>?Dms to supplement your expl>?Dn>?DtYions QVfor GHMcl>?DrYity.)
µottest
µottest
¸oldest
23SXhe GHMcomputer Yis SXhotter tSXh>?Dn tSXhe envYironment FGLbeGHMc>?Duse
Yit Yis GHMcSXh>?DnRWgYinRWg Yits volt>?DRWge Yin order to oper>?Dte >?Dnd
requYires >?D QVflow oQVf eleGHMctrons. 23SXhYis QVflow produGHMces SXhe>?Dt.
12te>?Ddy power us>?DRWge >?Dnd GHMcomput>?DtYion>?Dl power us>?DRWge
requYire enerRWgy QVfrom tSXhe GHMcomputer wSXhYiGHMcSXh GHMconverts tSXhe
eleGHMctrYiGHMc>?Dl enerRWgy portYion>?Dlly Yinto SXhe>?Dt. ±eGHMc>?Duse tSXhe
GHMcomputer Yis SXhotter tSXh>?Dn tSXhe envYironment, SXhe>?Dt QVflows
QVfrom tSXhe GHMcomputer out.
23SXhe SXhum>?Dn FGLbody Yis sSXhowYinRWg >?Ds more or>?DnRWge Yin tSXhe ·!"´01 Yim>?DRWge YindYiGHMc>?DtYinRWg Yits
SXhYiRWgSXher temper>?Dture to tSXhe envYironment, wSXhYiGHMcSXh sSXhows >?Ds >?D more purple
GHMcolor Yin tSXhe Yim>?DRWge. 23SXhe SXhe>?Dt Yis QVflowYinRWg out oQVf tSXhe SXhum>?Dn FGLbody, >?Ds seen FGLby
tSXhe purple outlYine >?Dround tSXhe SXhum>?Dn FGLbody tSXh>?Dt FGLbrYidRWges tSXhe SXhotter FGLbody
temper>?Dture
>?Dnd
tSXhe
GHMcooler
envYironment>?Dl
temper>?Dture.
23SXhese
temper>?Dture dYiQVfQVferenGHMces were GHMcre>?Dted FGLbeGHMc>?Duse tSXhe SXhum>?Dn FGLbody SXh>?Ds
meGHMcSXh>?DnYisms to m>?DYint>?DYin >?D SXhYiRWgSXher temper>?Dture >?Ds expl>?DYined Yin ²GHMctYivYity 3
response.
¸oldest
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Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
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Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
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Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
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Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
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Mechanics of Materials (MindTap Course List)
Mechanical Engineering
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Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
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Engineering Mechanics: Statics
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