Answer:
6
Explanation:
Number of lines emanate from + 5 micro coulomb is 15 .
They terminates at negative charges that means at - 3 micro coulomb and - 2 micro Coulomb.
the electric field lines terminates at - 3 micro Coulomb and - 2 micro Coulomb is in the ratio of 3 : 2.
So the lines terminating at - 3 micro coulomb
= 
So the lines terminating at - 2 micro coulomb
= 
So, the number of filed lines terminates at - 2 micro Coulomb are 6.
Answer:
I believe the answer is B.)
Gravity is the energy due to Earth pulling down on an object.
Predictive maintenance - vibration analysis.
Condition-based maintenance - monitoring pressure reading on Equipment with water systems.
Scheduled maintenance - occurring at repeating intervals is changing a bearing on a conveyor belt every 30 days or inspecting the condition of a motor every 90 days.
Hoping it helps!
1) Impulse: 
2) Strong force: -131.1 N, weak force: -44.7 N
Explanation:
1)
The impulse exerted on an object is equal to the change in momentum of the object itself.
Mathematically:
where
m is the mass of the object
u is the initial velocity
v is the final velocity
For the skateboarder in this problem, we have:
m = 53.6 kg
u = 4.45 m/s
v = 0 (it comes to a stop)
Therefore, the impulse is
Where the negative sign indicates that the direction is opposite to the motion of the object.
2)
The impulse is also equal to the product between the force applied and the duration of the collision:
where
I is the impulse
F is the average force
is the time during which the force is applied
The strong force is applied in a time of
Therefore this force is
The weak force is applied in a time of
So this force is
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