A Roll of Aluminum Foil from the Grocery Store Is $26460 \mathrm {~N} / \mathrm { m } ^ { 3 }$

question 26

Short Answer

A roll of aluminum foil from the grocery store is 30 cm wide by 25 m long (if you unroll it). If the foil is 0.15 mm thick, and the specific weight of aluminum is $26460 \mathrm {~N} / \mathrm { m } ^ { 3 }$ , how much does
The roll of aluminum foil weigh? a. $142884 \mathrm {~N}$
b. $4900 \mathrm {~N}$
c. $0.03 \mathrm {~N}$
d. $30 \mathrm {~N}$

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Definitions:

Purely Competitive

A market structure characterized by many buyers and sellers, free entry and exit, and a homogeneous product, leading to price taking by firms.

Marginal Product

The additional output resulting from the use of one more unit of a factor of production.

Marginal Product

The marginal product is the additional output produced as a result of adding one more unit of a specific input, keeping other inputs constant.

Purely Competitive

A term often used interchangeably with "perfectly competitive," referring to a market with many buyers and sellers, all trading identical products.