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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...
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 ...
relevant equations: F = k*x F is force, k is spring constant and x is displacement from equillibrium.
W = 1/2kx2 W is work done.
rearranging F = k*x and using t...
Free vibrations involve no transfer of energy between the vibrating object and its surroundings, whereas forced vibrations occur when there's an external driving force and thus transfer of energy between ...
It is a frame of reference in which Newton's first law, which states that objects won't change velocity (accelerate) unless an external force acts upon them, is obeyed.
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