Ello, wheel and axle is regarded as a continuous lever why?
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The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Which substance has non polar covalent bonds