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.
Answer:
The statements are missing!
<span>Physicists use certain units to measure heat energy and electrical energy:
- Joule (Watt sec )
- Watt - hour
- Kilowatt- hour
- Calorie
Hope this helps!
</span>
The maximum magnitude of the net force on the box is 20 N, which is only possible if the boy and the girl pull the box together in the same direction, horizontally and parallel to the ground.
The minimum magnitude of the net force on the box is 0 N, which will occur when the boy and the girl pull the box together in the parallel but opposite direction.
If either of them pulls at an angle from the horizontal, then the magnitude of the net force will be between 0 N and 20 N.
Answer:
1.5 times
Explanation:
= depth of the diver initially = 5 m
= density of seawater = 1030 kg m⁻³
= Initial pressure at the depth
= final pressure after rising = 101325 Pa
Initial pressure at the depth is given as
= Initial volume at the depth
= Final volume after rising
Since the temperature remains constant, we have
