1.

OLA DEAR PLZ SOLVE BY STEP BY STEP EXPLANATION

Answer»

Step-by-step EXPLANATION:

Firstly, You have to MULTIPLY 2×22

You will get 44/7 then DIVIDE it

then your value is 6.2857142857

Secondly, Then after multiply 6.2857142857 by 5 then your value is 31.4285714286

Third, multiply 60×60 you will get 3600

now, Divide it by 31.4285714286 you will get 0.0087

Now you can WRITE this in FORM 8.7 ×10^3cm/s



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