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Answer:
B.Self powered
Explanation:
They move by themselves.Hope this answer helps you ;)
Answer:
An Arrhenius base is a substance that dissociates in water to form hydroxide (OH–) ions. In other words, a base increases the concentration of OH– ions in an aqueous solution.
30 kg m/s
momentum = mass x velocity = 10 x 3 m/s =30 kg m/s
