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Y 2K Homework 1 Unit and Si x CIchegg.com x Smarthinking Online Tutor... X http://r.sear...ynfC-6jR6EUU- x e a search 3 b/Student/Assig dep-13131530 One gallon of paint (volume 33.78 x 10-3 m3) covers an area of 12.0 m2. hat is the thickness of the fresh paint on the wall? 0.000315 Need Help? Read It l Master It Talk to a Tutor 0/6 points Previous Answers SerPSE8 1.P028 My Notes Ask Your Teacher bathtub. Assume the tub measures 1.3 m by 0.5 m by 0.3 m (a) Compute the order of magnitude of the mass of a bathtub half full of wate 10 You Enter a number. Significantly from the correct answer. Rework your solution from the beginning and check each step carefully. kg b) Compute the order of magnitude of the mass of a bathtub half full of pennies Assume the pennies are made entirely of copper.) 10 kg Need Help? Read It l Talk to a TutorExplanation / Answer
Volume = Area * thickness
Thickness = Volume/Area= 3.78 x 10^-3/12 =0.315 mm
Density of water = 1000kg/m^3
Volume of tub= 1.3*0.5*0.3= 0.195 m^3
Mass = Density of water *Volume of tub = 1000 x 0.195 = 195 kg if fully filled with water
if half filled m= 195/2 =97.5 Kg
Density of copper = 8960 kg/m^3
Mass = Density of pennies *Volume of tub = 8960 x0.195 =1747.2 Kg if fully filled with pennies
if half filled m= 1747.2 /2 =873.6 Kg
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