Answer:
atoms can't be created nor can be destroyed.
atoms cat be broken down into smaller pieces.
all atoms of an element are identical.
chemical reactions cause atoms to be rearranged.
Answer:
అభివృద్ధి చెందుతున్న యు.ఎస్ మరియు స్థానిక అమెరికన్ దేశం ముగించిన మొట్టమొదటి ఒప్పందం 1778 లో రెండు వర్గాల ప్రతినిధులచే ఆమోదించబడిన ఒప్పందం విత్ ది డెలావారెస్.
Explanation:
hope this helps...
Answer:
The small ship
The curved moon and the small ship,
Both ends of the small ship are pointed.
Sitting in the small ship,
I can only see the twinkling stars and the blue sky.
Explanation:
This is a Chinese nursery rhyme
Answer:
Velocity B = 20 m/s
Explanation:
Let the mass and velocity of the first object be A.
Let the mass and velocity of the second object be B.
Given the following data;
Mass A = 50 kg
Velocity A = 10 m/s
Mass B = 25 kg
To find the velocity of mass B;
First of all, we would determine the momentum of mass A;
Mathematically, momentum is given by the formula;
Momentum = mass * velocity
Substituting into the formula, we have;
Momentum A = 50 * 10
Momentum A = 500 Kgm/s
As a result of the collision, momentum of mass A is equal to the momentum of mass B.
Momentum A = Momentum B
500 = mass B * velocity B
500 = 25 * velocity B
Velocity B = 500/25
Velocity B = 20 m/s
Therefore, the velocity of the 25.0 kilogram mass after the collision is 20 meters per seconds.
