Question

A piece of wood measures 4cm by 2cm by 9cm. If it weights 144g,then find the density of the wood. Please answer as fast as you can with working

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Answer 1

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• 2000kg/m³ is the required density of wood.

Explanation:

According to the Question

It is given that,

• Mass,m = 144g

• Piece of wood measures 4cm by 2cm by 9cm

we have to calculate the density of the wood.

As we know that density is calculated by the mass per unit volume.

Conversion of unit

• Mass=144/1000 kg

• Mass = 0.144 kg

Calculation of Volume

Volume of Piece of Wood = 4×2×9

→ Volume of Piece of Wood = 72 cm³

Conversion of unit

→ Volume of Piece of Wood = 72/1000000 m³

→ Volume of Piece of Wood = 7.2×10-5 m³

• Now, calculating the density of wood.

• d = m/v

by putting the value we get

→d = 0.144/7.2x10-5

→ d = 0.144×105/7.2

→d = 14400/7.2

→ d = 144000/72

→ d = 2000 kg/m³

• Hence, the density of the wood is 2000 kg/m³.

Answer 2

Answer:

A piece of wood measures 4cm by 2cm by 9cm. If it weights 144g,then find the density of the wood. Please answer as fast as you can with working

✌️plz answer moderator don't delete it plz