That will depend on the coefficient of friction between the sliding surfaces, and also on Zak's weight. We don't have any of that information.
Yes, because cell phones use scientific structure to build.
Answer:
4.9 x 10⁻⁴N
Explanation:
Given parameters:
Mass of the vertical strand of spiderweb = 5 x 10⁻⁵kg
Unknown:
Tension in the vertical strand = ?
Solution:
The tension is the vertical strand will be the weight of the strand.
Weight of strand = mg
m is the mass
g is the acceleration due to gravity = 9.8m/s²
Tension in the vertical strand = 5 x 10⁻⁵kg x 9.8m/s²
Tension in the vertical strand = 4.9 x 10⁻⁴N
The currents in the wires are in opposite directions.
- Two long parallel wires separated by a distance 'r' having current
and 
have force per unit length which is given by 
.....(1) where 
is permittivity of free space whose value is 
.
If the current flowing through the wire are in same direction then they the wire attract each other and if the current flowing through the wire are opposite in direction then they the wire repel each other .
As it is given that two wires repel each other which means that current in the wires are in opposite direction .
Hence current flowing through wires are opposite in direction.
Learn more about force per unit length here :
brainly.com/question/15071504
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