Hey user
The energy E in joules (J) is equal to the voltage V in volts (V), times the electrical charge Q in coulombs (C):
E(J) = V(V) ×<span> Q</span>(C)
So
joule = volt × coulomb
or
J = V × C
Example
What is the energy in joules that is consumed in an electrical circuit with voltage supply of 15V and charge flow of 4 coulombs?
E = 15V × 4C = 60J
8 meters per second. To find velocity is to divide distance by total time. so 400/50.
Answer:
the force remains constant if the charge does not change
Explanation:
In a capacitor the capacitance is given by
C = ε₀ A / d
Where ε₀ is the permissiveness of emptiness, A is about the plates and d the distance between them.
The charge on the capacitor is given by the ratio
Q = C ΔV
Let's apply these expressions to our problem, if the load remains constant
C = Q / ΔV = ε₀ A / d
ΔV / d = Q / ε₀ A
If the distance increases the capacitance should decrease, therefore if the charge is a constant the voltaje difference must increase
Now we can analyze the force on the test charge in the center of the capacitor
ΔV = E d
E= ΔV/d
F = q E
F = q ΔV / d
Let's replace
F = q Q /ε₀ A
From this expression we see that the force is constant since the voltage increase is compensated by increasing the distance, therefore the correct answer is that the force remains constant if the charge does not change
Answer:
Magnitude F(t)=26.6 N
Direction: -x
Explanation:
Given data
Spring constant K=4.77 N/m
Mass m=1.89 kg
Displace A=5.56m
Time t=3.96s
To find
Magnitude of force F
Solution
The angular frequency is given as
Force on object is
Substitute given values
So
So
Magnitude F(t)=26.6 N
Direction: -x
Its because of inertia.
due to inertia u tries to be in the same state of motion, in this case u have a tendency to remain in forward motion as the car suddenly tries to stop, so u move forward.
all the best
