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Density of Energy in a Point and Specific Gravity of Material

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1. Determine the density of energy in a point if v=15m/s and P=30N/cm2 for a liquid with ѳx=1.4(specific gravity).
2. A hollow sphere with R (exterior) = 10cm and r (interior) = 8.5cm, floats in water with 30% of its volume submerged. Determine the specific gravity of the material of the sphere.
3. Determine the discharge (Q) in an area of .08m2 if the pressure of 12N/cm2 correspond to the velocity of fluid in this area.
4. A particle oscillates in a spring with a K = 800N/m and f = 2.5 Hz. Determine m.
5. A particle in simple harmonic motion has an xm = .03m and f = 8 Hz. Determine v(t) in t = .03T.
6. If x = .3 xm for a particle in simple harmonic motion, what fraction of the total energy is the kinetic energy in x?

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Solution Summary

The solution determines the density of energy in a point, specific gravity of the material of the sphere, and kinetic energy.

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