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This will depend on the conservation laws. In the same way that a numerical equation must be equal on either side, a reaction must have the same amount of certain properties on each side. The properties t...

Magnetic and electric fields share many similarities and symmetries (for example they both act on electric charge and obey an inverse square law of force), but there are some important differences. One di...

a) 600N arrow down for weight, no air resistance arrow, acceleration = 10m/s^2

b) 600N arrow down, 300N arrow up for air resistance, acceleration = 5m/s^2    (Using F = ma)

c) 600N arrows up...

If we assume there is no air resistance, this means that the horizontal component of the ball's velocity won't change. Resolving horizontally we can see that the horizontal velocity = ucos(θ). We can ...