How much entropy is in the universe?

How much entropy is in the universe? The total entropy of the observable universe is correspondingly higher, and is Sobs = 3.1+3.0−1.7 × 10104 k. Will the universe end? If the Universe holds enough matter, including dark matter, the combined gravitational attraction of everything will gradually halt this expansion and precipitate the ultimate collapse. Over […]

What factors affect lift and drag?

What factors affect lift and drag? Lift and drag also vary directly with the density of the air. Density is affected by several factors: pressure, temperature, and humidity. At an altitude of 18,000 feet, the density of the air has one-half the density of air at sea level. What factors affect drag force? Which are […]

What are the characteristics of a hydraulic system?

What are the characteristics of a hydraulic system? Characteristics of a Good Hydraulic Fluid Viscosity. Viscosity is a measure of a hydraulic fluid’s resistance to flow. Compressibility. Compressibility is a measure of the amount of volume reduction due to pressure. Wear Resistance. Oxidation Stability. Thermal Stability. Filterability. Rust and Corrosion Protection. Foam Resistance. What is […]

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