What are the factors affecting the weight?
The weight The reason of object’s falling downward the Earth is a type of force called the weight (the gravitational force), and you can feel this force when you carry an object or try...
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Valency of elements, How can you calculate the valency of each element?
The valency is the number of electrons that an atom gains, loses, or even shares during a chemical reaction, The valency is the number of electrons that an atom needs to gain or lose...
The properties and the measuring devices of the mass
The properties of the mass The mass is the amount of the matter in an object, the mass of any matter is a fixed value, It does not change by changing the state of...
The importance and uses of the lasers in the industry
Lasers in the industry The lasers are used to drill, weld, cut and mark all the sorts of the materials, They can drill the tiny holes in the turbine blades more quickly and less...