Answer:
The average distance is 999.936 light years.
Solution:
As per the question:
Ours is the Milky Way Galaxy with the diameter:
D = 1,00,000 ly
Radius, R =
Now,
A =
The area to each civilization, A' is:
A' =
The radius of each area of civilization, r:
Thus the average separation distance between civilizations is given as:
2r =
Explanation:
Given that,
Mass of the cart,
Mass of the cart 2,
Final speed of cart 2,
Final speed of cart 1 is 0 as it comes to rest.
Let us assume that the initial velocity of the cart 2 is 0. So using the conservation of linear momentum as :
So, the initial velocity of the 1.0-kg cart is 0.9 m/s.
during free fall acceleration doesn't depends on initial speed
in free fall acceleration is given by
so for all cases of initial speed its acceleration is always equal to "g" and magnitude equal to 9.81 m/s^2
Explanation:
B I think it is because it has 48 gm than A
it is c. safest when passing a large truck
hope this helps* :)