Help me pleaseeee I will give you 42 points! (I am dumb so that’s why)
2 answers:
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Answer:
D.The potential energy per unit charge
Explanation:
Electric potential of a charged particle:
It is scalar quantity because it has magnitude but it does not have direction.
It is the amount of work done required to move a unit positive charge from reference point to specific point in the electric field without producing any acceleration.
Mathematical representation:
Where W= Work done
= Unit positive charge
Other formula to calculate electric field:
Where K=
It can be defined as potential energy per unit charge.
Hence, option D is true.
Answer:
510 m
Explanation:
The arrow is fired upward, so the motion of the arrow is a free fall motion, therefore we can find the maximum height by using the suvat equation
where
v is the final velocity
u is the initial velocity
a is the acceleration
s is the displacement
Here we have:
v = 0 (at the point of maximum height, the velocity of the arrow is zero)
u = 100 m/s (initial velocity)
(acceleration of gravity, downward)
s = ? is the maximum height
Solving for s, we find the maximum height of the arrow: