4 years ago

Are gases more or less dense than liquids or solids at room temperature?

Physics

1 answer:

tigry1 [53]4 years ago

8 0

<span>Solids are denser than liquids, and liquids are denser than gases at room temperature. </span>

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When all of the magnetic domains line up on their own, the material is called ____________________.

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A basketball of mass 0.608 kg is dropped from rest from a height of 1.37 m. It rebounds to a height of 0.626 m.

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a) $|\Delta E|=4.58\: J$

b) $F=61.90\: N$

Explanation:

We can use conservation of energy between these heights.

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$\Delta E=0.608*9.81(0.6026-1.37)$

Therefore, the lost energy is:

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The force acting along the distance create a work, these work is equal to the potential energy.

$W=\Delta E$

$F*d=mgh$

Let's solve it for F.

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For a given Prandtl-Meyer expansion, the upstream Mach number is 3 and the pressure ratio across the wave is P2/P1 = 0.4. Calcul

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From table A-1 (Modern Compressible Flow: with historical perspective):

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μ₁ = 19.47°

v₂ = 60.55°

μ₂ = 16°

θ = 60.55 - 49.76 = 10.79°

The angle for the forward Mach line is:

μ₁ = 19.47°

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