When discussing what makes a material a good conductor you say, "They must
2 answers:
Answer:
readily accept electron flow."
Explanation:
As we know that electric current is defined as rate of flow of electric charge which is basically due to flow of electrons
So here we can say that
now we know that conductors are defined as good conductors when they do not resist the flow of charge
which means a good conductor will easily conduct the electric current through it.
So here correct answer will be
<em>readily accept electron flow."</em>
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Answer:
The gradient here represents Angela's Velocity.
Explanation:
A distance-time graph has distance on its y-axis and time on its x-axis. Therefore, the gradient of the distance-time graph is given by the following formula:
Since the rate of change of distance is called the velocity.
<u>Therefore, the gradient here represents Angela's Velocity.</u>
Answer:
find the diagram in the attachment.
Explanation:
Let vi = 12 m/s be the intial velocy when the ball is thrown, Δy be the displacement of the ball to a point where it starts returning down, g = 9.8 m/s^2 be the balls acceleration due to gravity.
considering the motion when the ball thrown straight up, we know that the ball will come to a stop and return downwards, so:
(vf)^2 = (vi)^2 + 2×g×Δy
vf = 0 m/s, at the highest point in the upward motion, then:
0 = (vi)^2 + 2×g×Δy
-(vi)^2 = 2×g×Δy
Δy = [-(vi)^2]/2×g
Δy = [-(-12)^2]/(2×9.8)
Δy = - 7.35 m
then from the highest point in the straight up motion, the ball will go back down and attain the speed of 12 m/s at the same level as it was first thrown
