Answer:
Spiral galaxies consist of a flat, rotating disk of stars, gas and dust, and a central concentration of stars known as the bulge. These are surrounded by a much fainter halo of stars, many of which reside in globular clusters.
Elliptical galaxies have smooth, featureless light-profiles and range in shape from nearly spherical to highly flattened, and in size from hundreds of millions to over one trillion stars. In the outer regions, many stars are grouped into globular clusters. Most elliptical galaxies are composed of older, low-mass stars, with a sparse interstellar medium and minimal star formation activity They are often chaotic in appearance, with neither a nuclear bulge nor any trace of spiral arm structure. Collectively they are thought to make up about a quarter of all galaxies.
irregular galaxies were once spiral or elliptical galaxies but were deformed by gravitational action. they are shapeless.
If you repeat the experiment, you will want to do it the same way to see if the results change.
HOPE THIS HELPS!!!
<em>604.8 kg</em>
<em>Hi there ! </em>
<em>d = m/V => m = d×V</em>
<em>V = l×w×h = 10m×12m×4m = 480 m³</em>
<em>m = 1.26kg/m³×480m³ = 604.8 kg</em>
<em>Good luck !</em>
Answer:
Another ship travels at an average velocity of 26 km/h for
Explanation:
It is given that u=36km/h
V= 72km/h
We have to convert it into m/s ao we will multiply it with 5/18
U=36×5/18=10
V=72×5/18=20
So acceleration =v-u/t
= 20-10/t
The time will be 9:45-9:25=20min
So we will convert it into second
= 20×60
a=20-10/20×60
=10/20×60
1/120
From newtons 2nd law
V^2-u^2=2as
S=v^2-u^2/2a
=400-100×120/2
=18000m/s
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