Answer:
At centroid
Explanation:
In the given equilateral triangle ABC with side of 1 m. The three equal charges e,e,e are placed at the A,B and C.
And the fourth charge 2e is put at point O which is called centroid.
Now we can calculate the distance AD by applying pythagorean theorem as,
Put the values and get.
Now calculate AO as,
And the sides BO=CO=AO.
Now Force can be calculated as
And similarly,
Now we can calculate resultant of in upward direction. as,
Therefore the resultant force on centroid O.
Therefore the fourth charge 2e should be placed on centroid so that it experience zero force.
I have read that it is enough energy to power the needs of civilization for an entire year.
Answer:
a) v=3.166 m/s
b) μ=0.0169
Explanation:
a)
The motion is totally inelastic collision so the mass of the person and the mass of the sled in the second part of the motion are add both.
b)
The motion have friction so the force and coefficient can be find using Newtons second law where
Shaking the ground up and down back and forth perpendicular to the direction it is traveling
The correct answer is Solar systems
Astronomy deals with studying the cosmos and everything that encompasses it such as stars, planets, meteors, asteroid, satellites, and similar.