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slamgirl [31]
3 years ago
10

Do 10 grams of oxygen atoms and 10 grams of iron atoms contain the same number of particles

Physics
1 answer:
Sergio [31]3 years ago
4 0
I’m lost at this question, sorry but I would’ve help !
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A potter’s wheel moves from rest to an angular speed of 0.50 rev/s in 28.9 s. Assuming constant angular acceleration, what is it
Fudgin [204]

Answer:

0.108 rad/s².

Explanation:

Given that

Initial angular velocity ,ωi = 0 rad/s

Final angular velocity ωf= 0.5 rev/s

We know that

1 rev/s = 6.28 rad/s

ωf= 3.14 rad/s

t= 28.9 s

We know that (if acceleration is constant)

ωf=ωi + α t

α=Angular acceleration

3.14 = 0 + α x 28.9

\alpha=\dfrac{3.14}{28.9}\ rad/s^2\\\alpha=0.108\ rad/s^2

Therefore the acceleration will be 0.108 rad/s².

Therefore the answer will be 0.108 rad/s².

5 0
3 years ago
A sprinter completes a 400m race (one lap around the track). Mr Borst thinks the magnitudes of her distance and displacement are
GalinKa [24]

Answer:

No

Explanation:

Displacement is how far between your initial and finishing position.

If one lap around the track is 400 m and the sprinter ran 1 lap around the track. Then the sprinter's distance is 400 m and their displacement is 0 m

If the sprinter ran 400 m in a straight line however, then it would be equal.

But since the sprinter ran 1 lap around there is no displacement.

I hope this helped you...  

7 0
3 years ago
Why do animal cells not need central vacuoles? Help A.S.A.P! Please!
Tamiku [17]

Answer:

This is because animals do not need to store as much water as plants.

Explanation:

Animals generally have smaller vacuoles than plants. Plants have large vacuoles that can occupy a large portion of their cell (up to 30 percent). The major function of the vacuole is to store water and maintain cell turgidity and pressure against the cell wall.

Animals on the other hand do not have a rigid cell wall, rather, they have a flexible cell membrane. As a result of this, they do not need to store water in vacuoles.

8 0
2 years ago
When you raise your arms for a long time and they start to hurt, is that because of gravity pulling on the arm or is it because
Gemiola [76]
It’s because your arms are getting tired
7 0
3 years ago
Why do thunderstorms most often occur in the summer months?
777dan777 [17]

Answer:

Because moisture and warmth are crucial to thunderstorms

6 0
3 years ago
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