Answer:
Explanation:
The question: What is the net force exerted by these two charges on a third charge q_3 = 47.0 nC placed between q_1 and q_2 at x_3 = -1.240 mm ?
<u>Your answer may be positive or negative, depending on the direction of the force.</u>
Solution:
The coulomb force is given by the equation
where 
is the separation between the charges 
and 
.
Now, in our case
The separation between charges 
and is
Therefore, the force between them is
and it is directed in the negative x-direction.
The separation between charges and is
therefore, the force between them is
Therefore the total force on charge is
Should the question say “what is the weight of the truck”? :)
I can then answer it. There is no information to find the weight of the boat ;)
We know that acceleration due to gravity is the same for all objects. But if we drop a flower petal and a hammer from the same height, the hammer falls faster. Why does this happen?
Let me try to explain. The petal falls slower as the resistance it faces by air slows it down much more. Even though the hammer is also affected by this resistance, the speed decrease is negligible due to its weight.
To simplify, a petal is much lighter than a hammer. Even though gravity accelerates them at the same speeds, the petal slows down due to air resistance but the hammer doesn't, as its weight counteracts the air resistance.
I may be confusing at times, so please ask me if you want anything clarified :)
Hope this helps you!
Potential energy behind dams
F=ma
m=f/a
m=6N/2 m per secon per second
m=3 kg.
If the cart is 1 kg then 3kg-1kg is 2kg.
The mass of the rock is 2kg.
