As you move away from a positive charge distribution, the electric field:
1 answer:
Answer:
The electric field always decreases.
Explanation:
The electric field due to a point charge is given by :
Where
k = electric constant
q = charge
r = distance from the charge
It is clear from the above equation that as the distance from the charge particle increases the electric field decreases. As you move away from a positive charge distribution, the electric field always decreases. Hence, the correct option is (c) "Always decreases".
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Answer:
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Explanation:
From the work energy theorem we know that: The net work done on a particle equals the change in the particles kinetic energy:
Where:
-W is the work done by the force.
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- d is the distance travelled.
- m is the mass of the car.
- are the final and the initial velocity of the car
are the final and the kinetic energy of the car.
Givens:
Plugging known information to get:
Explanation:
It is given that, the water from a fire hose follows a path described by equation :
........(1)
The x component of constant velocity,
We need to find the resultant velocity at the point (2,3).
Let and
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When x = 2 and
So,
Resultant velocity,
v = 6.4 m/s
So, the resultant velocity at point (2,3) is 6.4 m/s. Hence, this is the required solution.