What is the cheapest roof style?

What is the cheapest roof style? For most homeowners, the best bet is choosing an affordable, yet durable roofing system. Clay. Clay roofing systems are very captivating, cheap roofing materials. Asphalt. Asphalt is the cheapest of all roofing materials in the market. Metal. A range of affordable metal roofing systems are now available in the […]

How do you explain combustion?

How do you explain combustion? Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat. The original substance is called the fuel, and the source of oxygen is called the oxidizer. The fuel can be a solid, liquid, or gas, although for airplane propulsion the fuel is usually […]

Does masturbation affect immunity?

Does masturbation affect immunity? An orgasm may benefit your immune system Though the study was very small, the researchers found that masturbation increased the number of inflammatory mediators called leukocytes (white blood cells) and natural killer cells. Both of these fight infection as a part of the body’s immune response. How can you tell if […]

What is a pulley system in physics?

What is a pulley system in physics? Pulleys are mechanisms compost by wheel and rope used to lift heavy objects onto tall heights. They change the direction of an applied force and they can even reduce the force needed to lift a weight. Pulleys systems are common used in constructions. What is the tension formula? […]

What is a formula of stress?

What is a formula of stress? The stress equation is: σ = F/A. F denotes the force acting on a body and A denotes the area. Units of stress are the same as units of pressure – Pascals (symbol: Pa) or Newtons per squared meter. Positive stress means that the object is in tension – […]

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