Question

An iron block has a length of 8 centimeters, a width of 5 centimeters, and a height of 4 centimeters. If the density of iron is 7,874 kg/m3
, which of the following correctly calculates the mass of the block?(1 point)
Responses

0.49 g
0.49 g

1,259.84 g
1,259.84 g

49.2125 g
49.2125 g

1,259,840 g

Answer 1

Volume = 8 cm × 5 cm × 4 cm = 160 cm³ = 160 × 10⁻⁶ m³ = 1.6 × 10⁻⁴ m³.

Mass = density × volume = 7,874 kg/m³ × 1.6 × 10⁻⁴ m³ = 1.25984 kg = 1,259.84 g.

Correct choice: 1,259.84 g.