Question

A piece of metal has a mass of 0.650 kilograms, has a width of 0.136 meters, and has a length of 0.0451 meters.Part A: If the metal’s volume is 291 cm3, what is the height of the metal in centimeters? (The width & length values given above are in a different unit!)

Part B: What is the density of this piece of metal?

Answer 1

height = 4.74 cm

density = 2.23 g/ cm³

Step-by-step explanation:

Mass of metal = 0.650 kg (650 g)

Width = 0.136 m

Length = 0.0451 m

Volume of metal = 291 cm³

Height in cm = ?

density of metal =?

Solution:

Width = 0.136 m (0.136 m×100 cm/1m = 13.6 cm)

Length = 0.0451 m (0.0451 m×100 cm/1m = 4.51 cm)

First of all we will calculate the height:

Volume = height× width× length

291 cm³ = h × 13.6 cm × 4.51 cm

291 cm³ = h × 61.34 cm²

h = 291 cm³ / 61.34 cm²

h = 4.74 cm

Density:

d = m/v

d = 650 g/291 cm³

d = 2.23 g/ cm³