CHEGG In the final stages of production, a pharmaceutical is sterilized by heating it from 25 to 75C as it moves at 0.2 m/s thro
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Answer:
Part a: The electric potential of each sphere is 1.35x10⁸V
Part b: The electric field at the surface of sphere 1 and 2 is 2.25x10⁹ N/C and 6.75x10⁹ N/C respectively
Explanation:
As the complete question is not given, the similar question is attached herewith. The values are used as indicated in the given question
Let r_1 = 6 cm=0.06 m
r2 = 2 cm = 0.02 m
Q = 1.2 mC
Let q1 and q2 are the charges on each sphere.
q1 + q2 = 1.2 mC -------(1)
In the equilibrium, V1 = V2
k*q1/r1 = k*q2/r2
q1/0.06 = q2/0.02
q1/q2 = 0.06/0.02
q1/q2 = 3 ---------(2)
On solving equation 1 and 2
we get
q1 = 0.9 mC
q2 = 0.3 mC
So
V1 = k*q1/r1 = (9*10^9*0.9*10^-3)/0.06 = 1.35*10^8 Volts
V2 = k*q2/r2 = 9*10^9*0.3*10^-3/0.02 = 1.35*10^8 Volts
So the electric potential of each sphere is 1.35x10⁸V
Part b
Now the electric potential is given as
E1 = k*q1/r1^2 = 9*10^9*0.9*10^-3/0.06^2 = 2.25*10^9 N/C
E2 = k*q2/r2 = 9*10^9*0.3*10^-3/0.02^2 = 6.75*10^9 N/C
So the electric field at the surface of sphere 1 and 2 is 2.25x10⁹ N/C and 6.75x10⁹ N/C respectively
Given that,
Voltage = 10 volt
Suppose, The three resistance is connected in parallel and each resistance is 12 Ω. find the current in the electric circuit.
We need to calculate the equivalent resistance
Using formula of parallel
Put the value into the formula
We need to calculate the current in the circuit
Using ohm's law
Where, V = voltage
R = resistance
Put the value into the formula
Hence, The current in the circuit is 2.5 A
Answer:
20.62361 rad/s
489.81804 J
Explanation:
= Initial moment of inertia = 9.3 kgm²
= Final moment of inertia = 5.1 kgm²
= Initial angular speed = 1.8 rev/s
= Final angular speed
As the angular momentum of the system is conserved
The resulting angular speed of the platform is 20.62361 rad/s
Change in kinetic energy is given by
The change in kinetic energy of the system is 489.81804 J
As the work was done to move the weight in there was an increase in kinetic energy