contestada

the difference in density between gases creates buoyancy, which is the ability of an object to float. At 0°C, helium has a density of 0.18kg/m 3. At 0°C, regular air has a density of 1.29 kg/m 3. In kilograms, how much mass can a cubic meter of helium float in regular air at 0°C?

Respuesta :

znk

Answer:

[tex]\large \boxed{\text{1.11 kg}}[/tex]

Explanation:

The buoyant force in kilograms is given by

[tex]F = V(\rho_{\text{air}} - \rho_{\text{He}})[/tex]

[tex]\begin{array}{rcl}F& = & \text{1 m}^{3} \times(\text{1.29 kg/m}^{3} - \text{0.18 kg/m}^{3})\\ & = & \textbf{1.11 kg}\\\end{array}\\\text{A cubic metre of helium can float a mass of $\large \boxed{\textbf{1.11 kg}}$}[/tex]

Otras preguntas