the distance L between charges q = + / - 2 nC is equal to 20 cm. determine the intensity of the field created by these charges at a point located at a distance of r = 15cm from the first charge and r = 10cm from the second charge

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th

Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47