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In-s [12.5K]
3 years ago
9

How are the orbits of asteroids similar to, or different from planetary orbits?

Chemistry
1 answer:
Strike441 [17]3 years ago
7 0
Aside from banks, what are 2 other places you might be able to borrow
money? And can you help with more questions on my page thank you so much I really appreciate you and everything you do for this app
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How many metres further would the sound intensity be 1/2 times as much as that at a distance of 3 m from an acoustic source?
marshall27 [118]

Solution :

Let, intensity at distance 3 m from the acoustic source is I_o.

We need to find the distance d where the intensity is \dfrac{I_o}{2}.

Now, we know intensity is inversely proportional to square of distance between the source.

\dfrac{I_o}{\dfrac{I_o}{2}} = \dfrac{d^2}{3^2}\\\\d^2 = 18 \\\\d = 3\sqrt{2}\ m

Therefore, intensity will be halved at a distance of 3\sqrt{2}\ m.

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3 years ago
How many atoms are in 1.50 g of Al?
Helga [31]
Question:
How many atoms are in
1.50g ofAI

Number of Mole:
Generally, the ratio within the total mass of a chemical substance and the molar mass of that chemical substance is utilized to calculate the total number of moles of the substance. The mathematical expression of the number of the mole is shown below,
n=m/M
Here, n is the total number of moles, m is the total mass and M is the total molar mass.

Answer and Explanation:


Given data

The mass of the aluminum is
m =1.50g
Note- The molar mass of the aluminum is
M=26.98g/mol
Since n=m/M
n= 1.50/26.98
n=0.0556
So the answer is A
4 0
1 year ago
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