Can you answer these three questions showing all detailed work? Questions scient

Question

Can you answer these three questions showing all detailed work?

Questions scientific notation with three significant figures. 1. The diameter of the earth is 12,740,000 meters a) Determine the radius of the earth. b) The surface area of a sphere is A 4 R. Assuming the earth is a sphere, what is the surface area of the earth? A= 2. Using the conversion that 1.00 inch 2.54 cm, convert the volume V 604 in into a volume in cubic centimeters. cm3 3. How many cubic mters are there in 2.00 cubic klometers ?

Explanation / Answer

1.Diameter=12740000 m

(a)radius =Diameter/2=6.37*10^7 m

(b) Area=4*pi*r^2=5.10*10^14 m^2

2.(a)V=604*2.54^3=9.90*10^3 cubic cm

(3)2 cubic km=2.00*10^9 cubic meter

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