Question #10 in the Physics 8th Edition Cutnell and Johnson... A partly full pai

Question

Question #10 in the Physics 8th Edition Cutnell and Johnson...
A partly full paint can has 0.67 US gallons of paint left init. (a) What is the volume of the paint in cubic meters? (b) If allthe remaining paint is used to coat a wall evenly (wall area=13m2), how thick is the layer of wet paint? Answer needsto be in meters.
I got part A equaling 2.54 x 10-3 m3,but part B i'm having trouble figuring out the conversion gettingfrom my answer in m3 to an answerthat is comparable with m2 in relation to the area ofthe wall. I don't know which conversions to use.
A partly full paint can has 0.67 US gallons of paint left init. (a) What is the volume of the paint in cubic meters? (b) If allthe remaining paint is used to coat a wall evenly (wall area=13m2), how thick is the layer of wet paint? Answer needsto be in meters.
I got part A equaling 2.54 x 10-3 m3,but part B i'm having trouble figuring out the conversion gettingfrom my answer in m3 to an answerthat is comparable with m2 in relation to the area ofthe wall. I don't know which conversions to use.

Explanation / Answer

   b)    Area of the wall  A = 13 m2          thicknes of the layer of wet paint                               t = V / A                               =   2.54 * 10-3 / 13                                = 0.1953*10-3 m

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