Question

1) Prove that the kinetic energy of a freely falling object on reaching the ground is nothing but the transformation of its initial potential energy.
2) Write the names of the following compounds and deduce their molecular masses- Na2SO4 and K2CO3.​

Answer 1

1. dfdtiedsrstdysdusdhdyaydaydadydhdy

2. djfsrhseyq3tq4uet475mdhjaeg5iwtrqriqxjxjfxh

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