the table shows the weight of a radioactive substance which decreases by 12 every year. find the weight of the radioactive substance in the 3rd year.

The table shows the weight of a radioactive substance, which decreases by 1 2 every year. Find the weight of the radioactive substance in the 3 rd year. Time W..

In 1896, the phenomenon of radioactivity was accidentally discovered by French scientist Henri Becquerel. He was performing experiments with uranium compounds. He accidentally placed a crystal of potassium uranyl sulphate over photographic plate wrapped with usual black paper. On develo..

Discovery of Radioactivity - The discovery of the phenomenon of radioactivity was purely accidental. In 1896, Henry Becquerel, a French scientist accidentally found that in presence of salt of uranium, photographic plates got heavily fogged even though they were wrapped in opaqu..

Choose the relation that best represents the table. Time Weight of a radio active substance Initial 1600 grams After first year 400 grams After second year 100 grams After third year 25 grams => The weight of the radioactive..

A radioactive nucleus or element emits an alpha or a beta particle and gets converted into a new nucleus or element. The process of destruction of the original nucleus during the formation of new nucleus due to radioactivity is called Radioactive decay or disintegrat..

The table shows the weight of a child as he ages. Choose the appropriate scatter plot which best represents the table. Age (in Years) Weight (in pounds) 2 20 3 25 4 28 5 30 6 35 => Figure 1 or Figure 2 or Figure 3 or Figure 4..

The table shows the age and weight of a group of people. Make a scatter plot for the data. Age (in years) Weight (in kg) 18 57 18 62 22 74 23 60 20 75 22 68 21 56 20 55 18 73 18 74 19 60 18 72 => Graph 1 or Cannot be determined or Graph 3 or Graph 2..

The age ( x 1 ), height ( x 2 ) and weight ( y ) of 5 children selected randomly are shown. Find the value of the multiple correlation coefficient R. Age (in years) ( x 1 ) 8 9 10 11 12 Height (in inches) ( x 2 ) 44 43 47 49 48 Weight (in lbs) ( y )..

. Such series demonstrate as to how various forms of life have changed gradually over a period of millions of years. As a result, the evolution of a number of animals such as horse, camel and elephant, has been clearly understood. Plenty of fossil evidence is now available so as to establ..

Background Radiation - In astronomy, the low temperature microwave radiation that arrives at the earth's surface from all directions of outer space is called background radiation. It is so named because it forms a background to all the radio sources that have been detected by radio telescopes. Cosm..