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A sheet of paper is 0.00005 meter thick. One nanometer is 1 x 10^-9 meter. how thick is a sheet of paper in nanometers

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Since 1 nanometer = 1x10^-9 meter, then, use the conversion factor:


\frac{1nm}{10^(-9)m^{}}

Multiply the thickness of the sheet of paper measured in meters times the conversion factor:


(0.00005m)\cdot(1nm)/(10^(-9)m)

Rewrite 0.00005 in scientific notation by moving the point 5 places to the right:


0.00005=5\cdot10^(-5)

The thickness of the sheet of paper, is:


(5\cdot10^(-5))/(10^(-9))nm

Use the laws of the exponents to rewrite 10^-5/10^-9:


5\cdot(10^(-5))/(10^(-9))nm=5\cdot10^(-5-(-9))nm=5\cdot10^(-5+9)nm=5\cdot10^4nm

Rewrite 5x10^4 nm by moving the point 4 places to the right:


5\cdot10^4nm=50,000nm

Therefore, the thickness of a sheet of paper is 50,000 nm.