Answer:
We know that ΔK = Kf - Ki = 1/2 m Vf^2 - 1/2 m Vi^2 = 1/2m(Vf^2-Vi^2) = 1/2 m ΔV^2.
The mass remains the same, just calculate the difference of squared velocities and multiply it by half of the mass.
<span>Kinetic energy is a body that possesses by
virtue of being in motion. While potential energy possesses a body by virtue of
its position relative to others, stresses within itself, electric charge, and
other factors. As the “car” moves along the track its kinetic energy coverts to
potential energy when it moves up or down one of the hills. With the initial motion
already pushing it when it reaches a slope or dip it uses its own motion to
move along the track. </span>
<span>For
my track I used cardboard and for my “car” I used a spool of thread. The weight
of the cardboard is about .13 kg and the spool is about 0.9</span>
<span>P.s. these were my answers and I got a pretty good grade, for the weight of the track and "car" I did estimate it.</span>
The increase the magnitude of the electric force ;
1) The charges on the objects must be increased
2) The distance of separation between the objects must be reduced.
<h3>
What is electric field?</h3>
The term electric field has to do with the region where the electric force on an object is expirieced. We must the note thate electric force is a result of the influence of a charge on another.
The increase the magnitude of the electric force ;
1) The charges on the objects must be increased
2) The distance of separation between the objects must be reduced.
Learn more about Charges:brainly.com/question/2526815
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Answer:
the answer is Z,X,W,Y
Explanation:
we know Z is the hardest material because when it is rubbed against any material,the other material is definitely left with a mark,so Z is 1st
we know Y is the weakest material because when it is scratched by all other materials,it is left with a mark.so we write Y at the last.
X is rubbed against W and W is left with a mark,so we know that X is harder than W,so we should write X just before W and after Z.