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Anni [7]
3 years ago
6

A(n) _______ studies physical components and characteristics of celestial objects.

Physics
1 answer:
inna [77]3 years ago
5 0

Answer:

Astronomers?

Explanation:

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The relative density of oxygen and carbon dioxide are 16, 12 respectively. If 25cm3 of carbon dioxide effuse out in 75 sec what
Mrac [35]

Answer:

32 cm³

Explanation:

The given gas data are;

The relative density of oxygen = 16

The relative density of carbon dioxide = 12

The time it takes 25 cm³ of carbon dioxide to effuse out = 75 seconds'

The duration of effusion of the oxygen = 96 seconds

The rate of effusion of carbon dioxide, R1 = 25 cm³/(75 sec) = (1/3) cm³/sec

According to Graham's law of diffusion and effusion of a gas, we have;

\dfrac{Rate \ of \ effudion \ of \ gas \ 1}{Rate \ of \ effudion \ of \ gas \ 2} =\dfrac{The \ relative \ density \ of \ gas \ 2}{The \ relative \ density \ of \ gas \ 1}

Therefore, we have;

\dfrac{Rate \ of \ effudion \ of \ oxygen}{(1/3)} =\dfrac{12}{16}

The \ rate \ of \ effudion \ of \ oxygen}=\dfrac{12}{16} \times \left(\dfrac{1}{3 } \ cm^3/sec\right ) = \dfrac{1}{4} \ cm^3/sec

The volume of effusion = The rate of effusion × Time

The volume of the oxygen that will effuse in 96 seconds is given as follows;

The rate of effusion of a gas × Time

V = The rate of effusion of oxygen × Time = (1/3) cm³/sec × 96 sec = 32 cm³

The volume of oxygen that will effuse in 96 seconds, V = 32 cm³.

8 0
3 years ago
Choose the correct statement about the acceleration of the car.
brilliants [131]

Answer:

Whats the question/word problem or where is the graph (if included) representing this problem?

4 0
3 years ago
If the height is 10m, what is the potential energy? Asuming that the mass is 10
Ratling [72]

\huge{\textit{\sf{{\color{m}{Answer}}{\color{b}{࿐}}}}}

we know,

\boxed{potential \: energy = mgh}

So,

\longmapsto10 \times 9.8 \times 10

\longmapsto980 \: joules

6 0
3 years ago
When electrons are shared, the type of bonding is called _____.
lutik1710 [3]
It's called covelant bonding
5 0
3 years ago
Which vector below goes from (0,0) to (4,1)?
Lesechka [4]

Explanation:

Please attach the figure next to your question in order to help you.. Wish u the best and Have a great Day. Good Luck!

8 0
4 years ago
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