Question

Solve!!!!
This lovely physics question.

Answer 1

Heyaa...!! first of all hihii..lol..lovely...

Let the given depth be h.

Pressure at the given depth, p = 80.0 atm = 80 × 1.01 × 105 Pa

Density of water at the surface, ρ1 = 1.03 × 103kg m–3

Let ρ2 be the density of water at the depth h.

Let V1 be the volume of water of mass m at the surface.

Let V2 be the volume of water of mass m at the depth h.

Let ΔV be the change in volume.

ΔV = V1 – V2

= m [ (1/ρ1) – (1/ρ2) ]

∴ Volumetric strain = ΔV / V1

= m [ (1/ρ1) – (1/ρ2) ] × (ρ1 / m)

ΔV / V1 = 1 – (ρ1/ρ2)     ……(i)

Bulk modulus, B = pV1 / ΔV

ΔV / V1 = p / B

Compressibility of water = (1/B) = 45.8 × 10-11Pa-1

∴ ΔV / V1 = 80 × 1.013 × 105 × 45.8 × 10-11  =  3.71 × 10-3    ….(ii)

For equations (i) and (ii), we get:

1 – (ρ1/ρ2)   =   3.71 × 10-3

ρ2 = 1.03 × 103 / [ 1 – (3.71 × 10-3) ]

= 1.034 × 103 kg m-3

therefore the density of water at its depth (h) is 1.034 × 103 kg m–3 Hope u liked the answer THANK YOU

Answer 2

hey mate here's ur answer!!! ❤❤❤❤❤❤Let the given depth be h.
Pressure at the given depth, p = 80.0 atm = 80 × 1.01 × 105 Pa
Density of water at the surface, ρ1 = 1.03 × 103 kg m–3
Let ρ2 be the density of water at the depth h.
Let V1 be the volume of water of mass m at the surface.
Let V2 be the volume of water of mass m at the depth h.
Let ΔV be the change in volume.
ΔV = V1 – V2
= m [ (1/ρ1) – (1/ρ2) ]
∴ Volumetric strain = ΔV / V1
= m [ (1/ρ1) – (1/ρ2) ] × (ρ1 / m)
ΔV / V1 = 1 – (ρ1/ρ2)     ……(i)
Bulk modulus, B = pV1 / ΔV
ΔV / V1 = p / B
Compressibility of water = (1/B) = 45.8 × 10-11 Pa-1
∴ ΔV / V1 = 80 × 1.013 × 105 × 45.8 × 10-11  =  3.71 × 10-3    ….(ii)
For equations (i) and (ii), we get:
1 – (ρ1/ρ2)   =   3.71 × 10-3
ρ2 = 1.03 × 103 / [ 1 – (3.71 × 10-3) ]
= 1.034 × 103 kg m-3
Therefore, the density of water at the given depth (h) is 1.034 × 103 kg m–3
hope this helps you