An 8 Newton wooden block slides across a horizontal wooden floor at constant velocity. What is the magi notice of the force of k
1 answer:
Answer:
The force of kinetic friction between the block and the floor is 2.4 N
Explanation:
The given parameters are;
The weight of the block = 8 Newtons
The velocity of the block = Constant velocity
Taking the kinetic friction for wood, = 0.3, we have;
The normal reaction of the block on horizontal ground, N = The weight of the block = 8 N
The force of kinetic friction between , =
× N
Therefore, we have;
The force of kinetic friction between the block and the floor, = 0.3 × 8 N = 2.4 N.
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Complete Question
A voltaic cell is constructed with two electrodes. The two cell compartment have
and
respectively.
What is the cell emf for the concentrations given? Express your answer using two significant figures
Answer:
The value is
Explanation:
Generally from the question we are told that
The concentration of at the cathode is
The concentration of at the anode is
Generally the the cell emf for the concentration is mathematically represented as
Generally the is the standard emf of a cell, the value is 0 V
So
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