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Firstly, pressure is created by air molecules colliding with a surface. At an increased altitude there are fewer air molecules, and therefore a larger average distance between them. This means at this hig...
Being able to manipulate equations is a very useful skill in Physics. Consider, for example, the relationship between mass, density and volume.m = ρ x vIn the above equation, the mass, m ...
When resistors are in series you may add up their resistances to find the total resistance, RTotal= R1 + R2. However, when resistors are in parallel, it gets a little more complicated. You must...
Sum of moments in equilibrium must equal 0. The sum of clockwise moments must equal the sum of anticlockwise moments. W1 is the force exerted on the seesaw by the heavy person at distance D1 from the pivo...
A collision is elastic when the total amount of kinetic energy in the system is conserved, there is no loss in kinetic energy.A collision is inelastic when the total amount of kinetic energy in the ...
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