Answer:
q = 1.815 \times 10^{-8} C
Charge on one plate is positive in nature and on the other plate it is negative in nature.
Explanation:
E = 8.20 x 10^5 V/m, A = 25 cm^2, d = 22.45 mm
According to the Gauss's theorem in electrostatics
The electric field between the two plates
Charge, q = surface charge density x area
q = 1.815 \times 10^{-8} C
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
=>
Answer:
The one with highest velocity
Explanation:
The momentum of an object is given by
where
m is the mass of the car
v is the velocity of the car
In this problem, we have two identical cars: identical means they have same mass, so
The momentum of car 1 is
while the momentum of car 2 is
By comparing the two expressions, we see that the car with greatest momentum is the one with highest velocity, since the mass is the same.