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OleMash [197]
2 years ago
9

How many galaxies similar in size to the milky way would you expect to find, on average, in cubes of that same size? in order to

simplify the problem, assume that the total number of galaxies of each type has not changed between then and now.
Physics
1 answer:
pishuonlain [190]2 years ago
3 0

The number of galaxies similar in size to the milky way that one can expect to find in cubes of that same size will be 64.

<h3>What is a milky way?</h3>

It should be noted that milky way simply means a spiral galaxy shaped that contains stars.

Here, the number of galaxies similar in size to the milky way that one can expect to find in cubes of that same size will be 64.

Learn more about milky way on:

brainly.com/question/13956361

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Physics Homework MathPhys homie if you see this pls help
cluponka [151]

Answer:

1. -8.20 m/s²

2. 73.4 m

3. 19.4 m

Explanation:

1. Apply Newton's second law to the car in the y direction.

∑F = ma

N − mg = 0

N = mg

Apply Newton's second law to the car in the x direction.

∑F = ma

-F = ma

-Nμ = ma

-mgμ = ma

a = -gμ

Given μ = 0.837:

a = -(9.8 m/s²) (0.837)

a = -8.20 m/s²

2. Given:

v₀ = 34.7 m/s

v = 0 m/s

a = -8.20 m/s²

Find: Δx

v² = v₀² + 2aΔx

(0 m/s)² = (34.7 m/s)² + 2 (-8.20 m/s²) Δx

Δx = 73.4 m

3. Since your braking distance is the same as the car in front of you, the minimum safe following distance is the distance you travel during your reaction time.

d = v₀t

d = (34.7 m/s) (0.56 s)

d = 19.4 m

6 0
3 years ago
Which of the following best describes the suns size compared with other stars?
Rufina [12.5K]
1) D: enormous
2) D: gravity
8 0
3 years ago
Classify pH values of 9.1, 1.2, and 5.7 as basic, acidic, or very acidic.
kramer
9.1 basic since > 7
1.2 VERY acidic << 7
<span>5.7 acidic < 7 </span>
4 0
3 years ago
During which type of collision is none of the energy converted to heat?
Galina-37 [17]

Answer:

D.

Explanation:

7 0
3 years ago
Light of wavelength 520 nm is used to illuminate normally two glass plates 21.1 cm in length that touch at one end and are separ
Oksi-84 [34.3K]

Answer:

The number is  Z = 216 \ fringes

Explanation:

From the question we are told that

      The wavelength is  \lambda  =  520 \ nm =  520 *10^{-9} \ m

       The length of the glass plates is y  = 21.1cm = 0.211 \ m

      The distance between the plates (radius of wire ) =  d =  0.028 mm  =  2.8 *10^{-5} \  m

   Generally the condition for constructive  interference in a film is mathematically represented as

            2 *  t  = [m +  \frac{1}{2}  ]\lambda

Where  t is the thickness of the separation between the glass i.e  

    t  = 0 at the edge where the glasses are touching each other and  

     t =  2d at the edge where the glasses are separated by the wire  

   m is the order of the fringe it starts from  0, 1 , 2 ...

So  

       2 *  2 * d   = [m +  \frac{1}{2}  ] 520 *10^{-9}

=>   2 *  2 *   (2.8 *10^{-5}) = [m +  \frac{1}{2}  ] 520 *10^{-9}

=>    

       m = 215

given that we start counting m from zero

   it means that the number of  bright fringes that would appear is

         Z =  m + 1

=>    Z =  215 +1

=>     Z = 216 \ fringes

3 0
3 years ago
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