Coals energy is affordable and it is easy to burn.
F = ma
F = (6kg) (3.5m/s2)
F = 21 N
100w bulb has a greater resistance according to p=vi and v=ir
It's not that the laws of motion are any different on Earth than in space. But Earth's gravitational field has such an overwhelming force it masks their precise effects. And gravity is integral to all sorts of phenomena that we take for granted.
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watch the right edge of your lane and check the position of oncoming cars. </span>