Place a red charge in the hockey field and click Play. In which directiori do electric field lines point? In which direction does the black puck move? What conclusion do you draw from this movement?

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myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.