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3 years ago

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Use the simple interest equation: I = Prt to solve the following problem. If a $7,500 investment earns $450 over 3 years, what i

s the annual interest rate?

1 answer:

zvonat [6]3 years ago

7 0

Answer:

Penis

Explanation:

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When two forces acting on an object are equal in size but act in opposite directions, we say that they are balanced forces.

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3 years ago

one group of atoms on the periodic tables are known as "noble gases". why have they been given this name?

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This group is called “noble gases” because they do not react with other elements. This is because they have a full valence shell.

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HURRY 20 POINTS <br><br><br> Why is it important to include exercise in your daily routine?

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2 years ago

If there is no oxygen in outer space, and, at the same time, oxygen must be present for fire, where does the sun come from?

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3 years ago

Read 2 more answers

One mole of magnesium (6 × 1023 atoms) has a mass of 24 grams, as shown in the periodic table on the inside front cover of the t

natka813 [3]

This question involves the concepts of density, volume, and mass.

The approximate diameter of a magnesium atom is "3.55 x 10⁻¹⁰ m".

<h3>STEP 1 (FINDING MASS OF INDIVIDUAL ATOM)</h3>

It is given that:

Mass of one mole = 24 grams

Mass of 6 x 10²³ atoms = 24 grams

Mass of 1 atom = $\frac{24\ grams}{6\ x\ 10^{23}\ atoms}$ = 4 x 10⁻²³ grams

<h3>STEP 2 (FINDING VOLUME OF A SINGLE ATOM)</h3>

$\rho = \frac{m}{V}\\\\V=\frac{m}{\rho}$

where,

$\rho$ = density = 1.7 grams/cm³
m = mass of single atom = 4 x 10⁻²³ grams
V = volume of single atom = ?

Therefore,

$V=\frac{4\ x\ 10^{-23}\ grams}{1.7\ grams/cm^3}$

V = 2.35 x 10⁻²³ cm³

<h3>STEP 3 (FINDING DIAMETER OF ATOM)</h3>

The atom is in a spherical shape. Hence, its Volume can be given as follows:

$V =\frac{\pi d^3}{6}\\\\d=\sqrt[3]{ \frac{6V}{\pi}}\\\\d=\sqrt[3]{ \frac{6(2.35\ x\ 10^{-23}\ cm^3)}{\pi}}$

d = 0.355 x 10⁻⁷ cm = 3.55 x 10⁻¹⁰ m

Learn more about density here:

brainly.com/question/952755

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2 years ago