Resistance ∞ (proportional) length
resistance ∞ 1/ area
therefore,
(the constant that we take is known as the resistivity)
resistance = (resistivity*length )/ area
resistivity = (resistance * area ) / length
= (3 * 45) / 3 = 135/3 = 45 Ωm
in short your answer is 45 Ωm
You might just have to take a walk outside instead of a virtual one beside its healthier for you also what kind of area do you live in
<span>A. the distance between them
</span>inversely proportional to the square of distance according to
F = Gm1m2/d^2
Answer:
a) Ua> Ub, b) Em = K + U
Explanation:
A swing is an oscillatory system, which goes from the highest point of the trajectory to the lowest point and then continues to the highest point on the other side, with a curved trajectory.
Suppose point A is the highest point and point A the lowest point, as the potential energy is given by the formula
U = m g h
if we define a reference system where the lowest point corresponds to y = or at this point the power energy is zero, therefore
Ua> Ub
in this movement the mechanical or total energy of the system remains constant, therefore it can be written
Em = K + U
therefore at the highest point the mechanical energy is only potential and at the lowest point it is only kinetic and at the intermediate points it has a part of each, but the value of the mechanical energy is constant and does not change.
