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2 years ago

It is important to know the difference between atoms, ions, and isotopes. Choose all of the correct answers.

1 answer:

8 0

The correct option is an atom of oxygen and the iron of oxygen both have 8 protons. As you add of remove neutrons from the nucleus, isotopes are formed

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A line segment of length k (in the figure) is divided into 3 equal parts. What is the distance between the midpoints of the firs

Travka [436]

Answer:

2k/3

Explanation:

5 0

2 years ago

A child riding a bicycle at 15 m/s accelerates at 3. 0 m/s/s for 4. 0 s. What is the child's speed at the end of this 4. 0 s int

mamaluj [8]

Answer:

The final speed of bicycle would be <u>27 m/s</u>².

Step-by-step explanation:

<u>Given</u> :

$\small\red\bull$ Initial velocity (u) = 15 m/s
$\small\red\bull$ Acceleration (a) = 3.0 m/s²
$\small\red\bull$ Time = 4 seconds

<u>To</u><u> </u><u>Find</u> :

$\small\red\bull$ Final velocity (v)

<u>Using</u><u> </u><u>Formula</u> :

$\longrightarrow{\pmb{\sf{v = u + at}}}$

$\small\blue\star$ v = final velocity
$\small\blue\star$ u = initial velocity
$\small\blue\star$ a = acceleration
$\small\blue\star$ t = time taken

<u>Solution</u> :

Substituting the values in the formula to find the final velocity :

$\longrightarrow{\sf{v = u + at}}$

$\longrightarrow{\sf{v = 15 + (3.0 \times 4)}}$

$\longrightarrow{\sf{v = 15 + (3 \times 4)}}$

$\longrightarrow{\sf{v = 15 +(12)}}$

$\longrightarrow{\sf{v = 15 +12}}$

$\longrightarrow{\sf{v = 27 \: {m/s}^{2}}}$

$\star{\underline{\boxed{\red{\sf{v = 27 \: {m/s}^{2}}}}}}$

Hence, the final speed of bicycle would be 27 m/s².

$\rule{300}{1.5}$

3 0

2 years ago

Andrea has $500 in the bank that she wants to invest in the stock market. she also wants to add $50 per month into this account

Paha777 [63]

The best way for andrea to build up a diversified portfolio of stocks is; by putting her money into dollar-cost averaging.

<h3>What is dollar-cost averaging?</h3>

Dollar-cost averaging is defined as an investment strategy in whereby the individual periodically purchases target assets or invests in a certain portion of funds in one security.

This therefore tells us that Dollar-cost averaging would reduce the risk tolerance associated with purchasing large stock securities.

Thus, we can recommend dollar cost averaging as the best way for andrea to build up a diversified portfolio of stocks.

Read more about stocks at; brainly.com/question/14360614

5 0

2 years ago

Which equation represents fertilization? haploid diploid = diploid diploid haploid = haploid haploid haploid = diploid diploid d

Crazy boy [7]

Answer: Haploid + Haploid = Diploid :)

6 0

2 years ago

What can you say about the series an in each of the following cases?

Likurg_2 [28]

The exercise is related to the Ratio Test for Convergence. The rules for this kind of test are given below.

<h3>What are the rules for Ratio Test for Convergence?</h3>

The rules are:

If the limit is less than 1 when conducting the ratio test, your series is definitely convergent.
The test is inconclusive if the limit is equal to 1.
The series is divergent if the limit is greater than 1.

Using this knowledge, we are able to state that

A is not conclusive.
C's convergence is absolute.
There is divergence with D and E.
B and F appear to be employing the nth-term test. The nth-term involves determining the sequence's limit as it approaches infinity.

The nth-term test determines whether a series is divergent if the limit is bigger than 0, thus, both B and F are divergent series.

Please see the attached for the full question and the link below for more about Ratio Test for Convergence:

brainly.com/question/16618162

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7 0

2 years ago