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This depends on what "best" means, but generally this boils down to location.
As an example, consider geothermal energy. This is derived from heat sources inside the Earth. Some places, s...
It is best to consider this in slow motion. First we have a wall which is at equilibrium (no external forces/all forces are balanced). Someone decides that the wall is in its way and wants to break down t...
speed = distance/time
This is often confusing because in everyday life people might say "how much do you weigh?" to which you might say "60kg", 60 kg is actually your mass and when we talk about weig...
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