A comment block of weight 200N has sides of length 5cm,10cm and 20cm. calculate the pressure exerted by the block when it is lying on the sides with the (i) Least area (ii) Greater area.​

The net force is 100

The answer is c.  na2haso4  and na2so4

Firstly, the planetary model of the atom  failed  to explain why individual atoms produce discrete  line spectra. in fact, according to rutherford's model, each individual atom should produce a  continuous  line spectrum. the second flaw to his model was the fact that electrons orbit the nucleus in a circular fashion.