Answer:
The force between them when they are separated by 12 cm is 5 N.
Explanation:
Distance between two point charges, d = 6 cm
The attractive force between them is 20 N, F = 20 N
Let F' is the force between them when they are separated by 12 cm, d' = 12 cm
The force between point charges is given by the formula as :
........(1)
New force,
............(2)
From (1) and (2) :
So, the force between them when they are separated by 12 cm is 5 N. Hence, this is the required solution.
<span>I believe this happens because when you rub the balloon on the carpet or fabric, the connection or contact of that jumbles up the atoms and they receive the energy which makes your hair as the question said 'stand on end' </span>
Answer:
Explanation:
It is given that,
Mass of the train car, 
Initial speed of the train car, 
Initial speed of the second car, 
After the collision, both cars stick together and move off with a speed of 4.00 m/s, V = 4 m/s
Let 
is the mass of the second car. It can be calculated using the conservation of momentum. In case of inelastic collision, after collision both objects move with a common speed.
So, the mass of the second car is 33833.33 kg. Hence, this is the required solution.
Answer:
c. Position C
Explanation:
As the magnetic force is the strongest at the end of the poles and it decreases when it comes to its centre.
<span><span> High School </span> <span> Physics </span> <span> 5+3 pts </span> </span><span><span>Previous question </span> </span> <span><span>Next question </span> </span> <span>Naomi wants to know the effect of different colors of light on the growth of plants. She believes that plants can survive best in white light. She buys 25
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