A beaker weighs 0.4 Ñ when empty and 1.4N when filled with water. what does it weigh when filled with brine of density 1.2g/cm3.(density of water is 1.0g/cm3). ​

Answer form flower;

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The answer is 4f======since electrostatic force is given by    we let f be the electrostatic force when  r = 1 m    if we let  denote the electrostatic force when the distance is decreased so that r = 0.5m, then    we established earlier that f = kq₁q₂. therefore    the force will now be 4f.

What about pink because im not too fond of red