Question

The young's modulus of steel is 1.9*10 raise to the power 11 N/m square Express it in dyne/cm square

Answer 1

WE KNOW 
1Newton=10 raise to power 5 dyne so your measurement will become:-
1.9x10^11(10^5 dyne)/cm square
=1.9x10^16 dyne / cm square...