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Aball is dropped from a 100-m tall building. neglecting air resistance, what will the speed of the ball be when it reaches the ground 4.5 seconds later?
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According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?
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What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics
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Aball is dropped from a 100-m tall building. neglecting air resistance, what will the speed of the b...
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