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Momentum conservation is a fundamental principle in physics that states that the total momentum of a closed system remains constant if no external forces act ...

Practical problems using momentum formulas

Energy is defined as the ability to do work

Power is defined as work done divided by the time used to do the work

More questions in conservation of momentum and energy

In physics, work is defined as the product of the net force and the displacement through which that force is exerted.

Test your knowledge in atoms and molecules

Avogadro's number, also known as Avogadro's constant, is a fundamental constant in chemistry that represents the number of atoms, molecules, or particles in ...

Recognize chemical reactions as single-replacement reactions and double-replacement reactions