Big Bang is a theory that, as stated above, has grown to become widely acceptable scientific explanation of the origin of things. Research would say that according to this theory, the Earth originated billion years ago through an explosive of a highly energized point.
Through this explosion, the elements were formed. However, only the lightest of the elements including hydrogen and helium, with traces of lithium and beryllium. From the choices, the answer would have to be the second choice, helium.
Answer: B. helium
Answer:
Friction, normal force, and weight
Explanation:
If the book slows down, it means that there must be friction acting in the opposite direction of the direction the book is moving in.
Weight is caused by the gravitational pull of the Earth on the book, and normal force is the table pushing the book up because the book is pushing down on the table (3rd law.)
Note that weight and normal force is not the 3rd law action-reaction pair. The pair is the force of the book on the table and the force of the table on the book.
Here in first case both balls will exert electrostatic force on each other
due to this electrostatic force the two balls will repel each other
Apart from this there will be gravitational force on the two balls which is vertically downwards
Now here we know that as the electrostatic force of repulsion will increase between two balls then the angle between the two balls will be more as the horizontal force will separate the two balls
Part b)
As we decrease the charge on one ball then the net electrostatic force between two balls will decrease as we know that this force will depends on the product of two charges
so here the angle between the two balls will decrease and the two balls will come closer.
Also by the free body diagram of two balls we can see that all the forces on the balls are same so the angle made by the ball with the vertical is same for both the balls
so here the angle that ball l makes with the vertical will be equal to the angle that ball 2 makes with the vertical.
Answer:
Explanation:
a ) Distance travelled by them = 3 / 4 x 2π R where R is radius of the circular path .
= .75 x 2 x 3.14 x 2.08
= 9.8 km approx
b )
Displacement = shortest distance between final and initial position
= √2 R
= 1.414 x 2.08
= 2.94 km approx
c ) The direction of displacement is towards north east
so the direction is 45° north of east .
Answer:
To summarize, the answer is it has a small radius.
Explanation:
This is becuase these characteristics interpert a small radius.
