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oil and gas
Key points for understanding: -The resultant force on the object is the vector sum of all forces on an object. -Ac...
A wave is a transfer of energy of particles. In the case of a transverse wave, the particles oscillate perpendicular to their direction of movement (i.e it looks like they are moving up and down) and in t...
The reaction force is the force that the table exerts on an object which is pressing on it.The reason there is a reaction force is because the table is made of atoms and you can imagine these atoms ...
gamma, beta, ultraviolet
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