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These resources are designed to help you familiarize yourself with the exam format, identify key topics, and practice effectively. Whether you're preparing for the May/June or GCE sessions, our curated materials provide both objective and theory questions to enhance your study sessions.","tags","waec nigeria west africa examination council","version","vip","location",{"_390":391,"_392":393},"type","Point","coordinates",[394,395],9.082,10.3671,"ng","priority",10,"createdOn",1755991949910,"updatedOn","questionsCount",27220,"courseCount",23,"examKey","questionData",{"_369":409,"_410":411,"_412":413,"_278":415,"_416":417,"_263":370,"_418":419,"_420":421,"_110":426},"Vme9vu3x89xiWNHlNCaM5LRoeQ5tNR","q","Water of mass 120g at 50oC is added to 200g of water at 10oC and the mixture is well stirred. Calculate the temperature of the mixture. [Neglect heat losses to the surrounding]","ans",[414],2,"2002","course","physics","exp","120 x 4.2(50 - \\(\\theta\\)) = 200 x 4.2(\\(\\theta\\) - 10)
\n
\n\\(\\theta = \\frac{33600}{1344} = 25^oC\\)","opts",[422,423,424,425],"60^oC","40^oC","25^oC","10^oC",20,"20","initComment","initReply","actionData","errors"]

WAEC - Physics (2002 - No. 20)

Explanation

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