Question

please answer for my question please bhaiya class 7 physics chapter measurement​

Answer 1

$\boxed{\bf{ \pink{\bigstar Question \longrightarrow }}}$

if the density of a substance is 2×10³ kg/m³,then the mass of 5m³ of this substance is .......

$\boxed{\bf{ \orange{\bigstar Given \longrightarrow }}}$

• Density of substance = 2 ×10³kg/m³
• Volume = 5m³

$\boxed{\bf{ \red{\bigstar Find \longrightarrow }}}$

• Mass of the substance-?

$\boxed{\bf{ \green{\bigstar SoLution \longrightarrow }}}$

we know the formula of density that is,

$\bf{ p = \dfrac{m}{v} }$

where,

p= density,

m= mass,

v= volume

put the value of p and v in the formula we get,

$\sf{ 2\times 10^3 = \dfrac{m} { 5} }$

$\sf{ m = 2\times 10^3 \times 5 }$

$\sf{m=10\times 10^3 }$

$\boxed{\bf { \star Mass \ of \ the \ substance = 10^4 kg \star } }$

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Answer 2

Answer:

substance is .......

★Given⟶

Density of substance = 2 ×10³kg/m³

Volume = 5m³

★Find⟶

Mass of the substance-?

★SoLution⟶

we know the formula of density that is,

{ p = {m}{v} }p=

v

m

where,

p= density,

m= mass,

v= volume

put the value of p and v in the formula we get,

\sf{ 2\times 10^3 = \dfrac{m} { 5} }2×10

3

=

5

m

{ m = 2\times 10^3 \times 5 }m=2×10

3

×5

{m=10\times 10^3 }m=10×10

3

Mass \ of \ the \ substance = 10^4 kg

⋆Mass of the substance=10

4

kg⋆

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