Silver coin weighting 11.34g was dissolved in concentrated nitric acid when sodium choloride was added to the solution all the silver was precipitated the weight of ppt was 14.35 g calculate the percentage of silver in coin

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space