A thin flat circular disc of radius 4.5 cm is placed gently over the surface of water. If surfac.... VIDEO
A thin flat circular disc of radius 4.5 cm is placed gently over the surface of water. If surface tension of water is 0.07Nm-1, then the excess force required to take it away from the surface is : 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live
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