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erma4kov [3.2K]

3 years ago

9

We estimate the mass of the galaxy by observations of its ________ curve.

1 answer:

seropon [69]3 years ago

8 0

The appropriate response is the rotation. There are most likely no less than 100 billion planets in the Milky Way. The Solar System is situated inside the circle, around 26,000 light-years from the Galactic Center, on the inward edge of one of the winding molded centralizations of gas and tidies called the Orion Arm.

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Q/C An undersea earthquake or a landslide can produce an ocean wave of short duration carrying great energy, called a tsunami. W

iragen [17]

The amplitude $A_{2}$ is 8.307 m

When describing the peak value of a quantity, such as the level of sound waves or the power and voltage in electrical and electronic systems, the term amplitude is employed. A louder sound has a bigger amplitude, and a softer sound has a smaller amplitude.

As we previously discussed in the concept session, the square root of the water's speed is inversely related to the amplitude of its waves.

$A\alpha\frac{1}{\sqrt{v} }$

Solve for first case:

$A_{1}=\frac{1}{\sqrt{v_{1} } }$

Solve for second case:

$A_{2}=\frac{1}{\sqrt{v_{2} } }$

So, the two equations is equal

$A^{2} _{1} v_{1} = A^{2} _{2} v_{2}$

$=A^{2} _{2} \sqrt{g d_{2} }$

Rearrange and solve for the amplitude $A_{2}$ :

$A_{2} =\sqrt{\frac{A^{2}_{1} v_{1} }{v_{2} } }$

$=\sqrt{\frac{A^{2}_{1} v_{1} }{\sqrt{g d_{2} } } }$

$=\sqrt{\frac{(1.8m)^{2} X200 m/s }{\sqrt{9.8m/s^{2}X9 m } } }$

= 8.307 m

So, The amplitude $A_{2}$ is 8.307 m.

Learn more about amplitude here:

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7 0

2 years ago

What is true about surface waves?

fredd [130]

B. is the correct answer

6 0

3 years ago

Read 2 more answers

Suppose you want to calculate how much work it

Jobisdone [24]

Mass is not necessary the main thing we need is Displacement

As

W=FD

Or

Work done=Force×Displacement

The amount of work done is calculated as the force exerted to remove a object to D distance .

6 0

2 years ago

1. Is the image projected on a movie screen real or virtual? What about the image of yourself seen in a bathroom mirror?

antiseptic1488 [7]

Answer: 1. The movie one is virtual and the bathroom mirror is real

2. The image is distorted in a way

3. Behind the spoon

Explanation:

7 0

2 years ago

If a force of 10 N acts on an object and an additional force of 6 N acts on the object in the same direction. What will be the n

Schach [20]

Answer: The 1st one is B. I'm pretty sure the 2nd one is A. and the 3rd one is D.

Explanation: I hope this helped, although I'm not sure for the second one

4 0

2 years ago

Read 2 more answers