A roll of aluminum foil from the grocery store is 25 centimeters wide by 25 meters long (if you unroll it). If the foil is 0.1 millimeters thick, and the density of aluminum is $2700 { \mathrm { kg } } / \mathrm { m } ^ { 3 }$ , what
Is the mass of the roll of aluminum foil?
A) 15899 kg
B) 500 kg
C) 1.7 kg
D) .36 kg

Question

A roll of aluminum foil from the grocery store is 25 centimeters wide by 25 meters long (if you unroll it). If the foil is 0.1 millimeters thick, and the density of aluminum is $2700  { \mathrm { kg } } / \mathrm { m } ^ { 3 }$ , what
Is the mass of the roll of aluminum foil?
A) 15899 kg
B) 500 kg
C) 1.7 kg
D) .36 kg

Quizplus · Accepted Answer

To find the mass, calculate the volume first: $ V = \text{width} \times \text{length} \times \text{thickness} = 0.25 \, \text{m} \times 25 \, \text{m} \times 0.0001 \, \text{m} = 0.000625 \, \text{m}^3 $. Then, use the density to find the mass: $ \text{mass} = \text{density} \times \text{volume} = 2700 \, \text{kg/m}^3 \times 0.000625 \, \text{m}^3 = 1.6875 \, \text{kg} \approx 1.7 \, \text{kg} $.

A Roll of Aluminum Foil from the Grocery Store Is 2700kg/m32700 { \mathrm { kg } } / \mathrm { m } ^ { 3 }2700kg/m3

A Roll of Aluminum Foil from the Grocery Store Is $2700 { \mathrm { kg } } / \mathrm { m } ^ { 3 }$