Question

a coin has a mass 7 g it is made up of metal with a density of 5600 kg/m3 calculate the volume

Answer 1

$\orange{hey\:mate}$
ᴠᴏʟᴜᴍᴇ=ᴍᴀꜱꜱ/ᴅᴇɴꜱɪᴛy
ᴍᴀꜱꜱ=7ɢ
ᴅᴇɴꜱɪᴛy=5600ᴋɢ/ᴍ³
=5600×1000/1000gm/cm³
ᴍᴀꜱꜱ=7/5600×1000/1000
=0.8cm³
$\orange{hope\:it\:helps}$

Answer 2

Hyeee

Mass of coin =g

Density = 5600kg/m³

Covert kg/m³ into g/cm³

5600×10/1000 g/cm³

As you know density=mass/volume

So

5600/7

800×10/1000

0.8 is your answer