Measure with a scale. Hoop this Helps!!!
Copper is an element.
An element is a substance that is entirely made from one type of atom.
Answer:
<h2>2000 kg</h2>
Explanation:
The mass of the sailboat can be found by using the formula

f is the force
a is the acceleration
From the question we have

We have the final answer as
<h3>2000 kg</h3>
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Answer:
option b. B3+
Explanation:
Boron takes the 5th position on the periodic table, therefore it has 5 electrons....2 on the inside and 3 on the outside. when it lost it 3 external electrons, it become positively charged with the amount of electron it loses.