Question

9*10^9*(1.6*10^-19)^2÷6.67*10^-1*(9.1*10^-31)^2 solve this brief ly ​

Answer 1

Answer:

2.6*10^21(approx)

Explanation:

9*10^9*(1.6*10^-19)^2÷6.67*10^-1*(9.1*10^-31)^2

=((9*1.6)/(6.7*9.1*9.1))10^(9-19+1+31+31)

=(14.4/552.34)*10^23

=2.607*10^21

=2.6*10^21(approx)