EAS 1600 Keys-Exam%203%20Samples

EAS 1600 Keys-Exam%203%20Samples - Name Lab Section EAS...

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Name Lab Section EAS 1600 - INTRODUCTION TO ENVIRONMENTAL SCIENCES Exam 3 Sam pie A I. A planet has a radius of 7000 Km. The planet is 65% covered by oceans which have an average depth of5 km. The average salinity of the oceans is 35%0. What is the mass of the salt in the oc~ns of this planet? [5 Pts];:. r.) VOCt"L" == ' ~)" "IC Lf7T(!Y/~~IC-- x/O~k-.) ~(>x K-. ).//0 c..~~ :::. ~~ )(¥ /T ( ;1. <.,t's y,,~.;:I:J C;;I ~ . - ~~/6,1~cr'1~ I 3"'- I SA j,"I'f, '71'; )"YI (tV,,? /) : 2. An S- Wave travels at 3 Km S-1 and a P- Wave travels at 7 Km S-I. The S- Wave arrived at a seismograph 15 minutes after the P- Wave What is the distance from the seismograph to the focus of the earthquake? [10 Pts] 7~/~ ,i: 3 k yo J. (t. +- IS:- _.~" 6 0 5/t,.)" ) '1~/s .r - sK7> X?OOS ;Z 70(') k~ ---- - ~ KJ'" h )( -=- 7 k~fi )( G Co X ~ '-I7,2~K~
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3. An Earth-like planet has a radius of 10,000 Km and the average movement of its plates is 5 cm per year. [10 Pts] a. What is the period of the Wilson cycle on this planet? 12- _ .J1.-i'S-;:; n- I ~~ ..r~ ,x/aJC~~ V -- V Name p= 3./~ >'lo7C~ ~c ..... /r~ Lab Section (;; .c; M ij =- t:.;(VY/cJ~v;: 6~ a'H-f.//d •... » b. Assume that one ocean is 8000Km wide, with a ridge in the middle of the ocean. What is approximate age of tne sea floor along the coasts? - 8000 .k~ - - - ?- -12-_ V ~- . L Y C)oo~)< /d t::-~ /A:,.., - S. iC -'/y;-.s ? ;3 X/e) v~ =
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Name _ Lab Section 4. Using the T-S diagram below solve the following problem 500 Kg of deep water with a Temperature of -I C and a salinity of 34 %0 is raised to the surface, where it is warmed to 8 C. How much water must evaporate before the water reaches the same density as the surrounding surface water? [10 Pts] Temperature-SalInity Diagram (Unes of DensIty in 9/an3) 20 5 33.5 34 34.5 35· 35.5 36 36.5 , salinity (PSU or pms/thousand) /l-t gt>c. 1-0 1e-t 13oclf-f:=e> I,O;J7tfMW?J vt.. ~IA;T YAd~ f-- I.,., fy 1() ~];~ J ~o ~= 3~1 X=- c1v~,b" IIJ()O -9t'/'.,,,,::;: ~3/,3/../ I ~OP 7 / - I &__ d...
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