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40 learners are going on a tour,the ratio of the number of boys to the number of girls is 3:2 how many boys are there in the group?

A block is pulled horizontally across the rough surface of a table by means of a spring scale at constant speed. The reading on the spring scale is 14N .the pulling force is now increased to 31N and the block experiences an acceleration of 8,5m's squared...

factors that cause teenagers to engage on forcinecation