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inysia [295]
3 years ago
13

Which of the following is likely to indicate a chemical change ?

Physics
1 answer:
Vika [28.1K]3 years ago
7 0

Answer:

A:The dissaperance of a solid stirred in water

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A standing wave on a string that is fixed at both ends has frequency 80.0 Hz. The distance between adjacent antinodes of the sta
OlgaM077 [116]

Answer:

v = 19.2 m/s

Explanation:

In order to find the speed of the string you use the following formula:

f=\frac{v}{2L}          (1)

f: frequency of the string = 80.0Hz

v: speed of the wave = ?

L: length of the string = 12.0cm = 0.12m

The length of the string coincides with the wavelength of the wave for the fundamental mode.

Then, you solve for v in the equation (1), and replace the values of the other parameters:

v=2Lf=2(0.12m)(80.0Hz)=19.2\frac{m}{s}

The speed of the wave is 19.2 m/s

8 0
4 years ago
what are the main morphological types of galaxies, and what is the difference in their rotation patterns?
ankoles [38]

The main morphological types of galaxies are elliptical, spiral, and irregular.

Based on their morphology , galaxies have been classified into 3 types namely elliptical, spiral, and irregular.

These galaxies have various sizes and shapes ranging from dwarf galaxies to giant galaxies.

Elliptical Galaxy:

  • The shape of it is generally circular
  • These are the largest among all the types of galaxies because according to astronomers, it is formed by the merger of other small galaxies.
  • Their rotational pattern is symmetric.

Spiral Galaxy:

  • A spiral galaxy consists of a bright nucleus surrounded by a thin outer disk forming a spiral shape.
  • This type of galaxy is the most common in our universe.
  • It is divided into three classes: Spiral a, Spiral b, and Spiral c.
  • Their rotational pattern has circular symmetry.

Irregular Galaxy:

  • These types of galaxies have no central nucleus and irregular arms which are bluish.
  • They don’t have any rotational symmetry.

To know more about "galaxies", refer to the following link:

brainly.com/question/24836631?referrer=searchResults

#SPJ4

3 0
2 years ago
When a bicycle coasts uphill, it moves slower and slower as it climbs. Why?
astra-53 [7]

Letter B because it is gaining more potential energy as it SLOWLY climbs up the hill.

the less motion the more potential energy there is

6 0
3 years ago
Read 2 more answers
• 500 waves pass by in 2 second. These waves have a wavelength of 6
tamaranim1 [39]

Answer:

6/2times500=1500

Explanation:

s = d/t which means speed equals distance divided by time.

7 0
3 years ago
Which of the following Illustrates 2 resistors in a series circult? A, B, C, D.​
Kaylis [27]

Answer:

It's either B or D, I'm not positive which it is

Explanation:

6 0
2 years ago
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