Answer:
OC The electric force between them decreases.
Explanation:
Electric force is a force due to charges which charged objects exert on each other. The charged objects A and B thus exert a definite force on each other which its value can be varied by varying the distance between them.
It is goo to note that the force between two charges is inversely proportional the the square of the distance between them. Thus when the distance is increased, the electric force would decease.
In the given question, option C is appropriate.
Answer:
X: Causes light rays to bend toward the principal axis
Y: Is capable of producing images that are smaller than objects
Z: Causes light rays to bend away from the principal axis
Explanation:
just took the test...
Initial position, u = 10 m
Final position, v = 5 m
Change in time, ∆t = 5 s
We know that, velocity = ∆x / ∆t
where, ∆x is the displacement and ∆t is the change in time.
∆x = v - u
∆x = 5 m - 10 m
∆x = -5 m
Velocity = ∆x / ∆t
Velocity = -5 m / 5 s
Velocity = -1 m/s
Therefore, <u>B: -1 m/s</u> is the correct answer. A negative velocity means the object is traveling in the other direction.
If mass doubled and the force remained constant then the acceleration would also double
Hopes this helps
