Copy of Copy of 5BL Lab 1 Assignment Submission Template - W24v2 2

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University of California, Los Angeles *

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5B

Subject

Mechanical Engineering

Date

Apr 3, 2024

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pdf

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5

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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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