Question

the volume of 50 gram of a substance is 20 cm cube if the density of water is 1 gram centimetre - you will the substance float or sink in water justify your answer

Answer 1

(m) = 50 g

(v) = 20 cm cube

(d) = m/ v =50 g /20cm cube  

= 2.5 gcm cube -3  

the substance will sink in water as it density more than of water.

Answer 2

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➧Mass = 50 g
➧Volume = 20 cm−³

➧ Density 0f Substance ➾ Mass 0f Substance / Volume 0f Substance

➾ 50 / 20
➾ 2.5 g cm−³ ...✔

Density 0f Substance is More, so 0bject will sink

_________             Thanks...✊