Please someone Answer!!!!!
2 answers:
Answer:
B
Explanation:
The expression which represents electric potential energy is given by
Where q and Q are the charges in the balloons
r = Distance between the charges or balloons
k = Coulomb's constant
It can be seen that the potential energy varies inversely with distance. This means that if the distance decreases the potential energy will increase.
In case B the distance between the balloons is the lowest so the electric potential energy will be maximum.
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Answer:
c) 2Q
Explanation:
From the given information:
The pressure inside a pipe can be expressed by using the formula:
Since the diameter in both pipes is the same, we can say:
where;
length of the first pipe A and the length of the second pipe B
Since the difference in pressure is equivalent in both pipes:
Then:
Answer:
w = 706.32 [N]
Explanation:
The force due to gravitational acceleration can be calculated by means of the product of mass by gravitational acceleration.
w = m*g
where:
w = weight [N] (units of Newtons)
m = mass = 72 [kg]
g = gravity acceleration = 9.81 [m/s²]
Then we have: