Firstly,friction depends partly on the nature of surface in contact with the moving body.The rougher the surface, the morer the friction experienced.Secondly, it is affected by the magnitude of force holding the two bodies that should be in contact,this is to say that an increase in the amount of weight on a body results to a rise in friction experienced by the body on the surface.
Answer:
wrong
Explanation:
it depends your perspective on it
Answer:
Gravity, downward
Friction, upward, the dam on the sides of the stream
Compression, downward, because they walk across it
Explanation:
The current problem can solved by using Faraday's law of induction which is actually one of the Maxwell's equations. It is stated as follows:
F=qE
Where
F = Non-coulomb force
q = 6.0 C
E = (dB/dt)*r^2*(2/R); In which dB/dt = 4 T; r = 1 cm = 0.01 m, R = 6.0 cm = 0.06 m, E = Newtons/Coulob
Substituting;
E = 4*0.01^2*(2/0.06) = 1/75
Therefore,
F = qE = 6*1/75 = 0.08 N