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ratelena [41]
3 years ago
8

Which of the following is true about elements? A. Atoms of all elements contain the same number of protons, but the number of ne

utrons is different for every element. B. Atoms of all elements contain neutrons, but they do not all contain protons. C. Atoms of all elements contain electrons, but they do not all contain protons. D. Atoms of all elements contain protons, but the number of protons is different for every element.
Physics
1 answer:
DedPeter [7]3 years ago
6 0
<span>D. Atoms of all elements contain protons, but the number of protons is different for every element. </span>
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3 years ago
A 400-kg object has a 100-Newton rightward net force being applied to it. What is the magnitude of the rightward acceleration on
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Answer:

The answer to your question is a = 0.25 m/s²

Explanation:

Data

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Process

To solve this problem use Newton's second law that states that the force applied to an object is directly proportional to the mass of the body times its acceleration.

Formula

                       F = ma

solve for a

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Substitution

                       a = \frac{100}{400}

Simplification and result

                              a = 0.25 m/s²

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