a cars speed goes from 25m/s to 40m/s in 50 seconds. a) did it accelerate or decelerate. b) calculate the acceleration or deceleration

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If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom