Explanation :
As the ambulance got closer, Marge noticed that the pitch of the siren got higher. This is due to the Doppler's effect.
The siren of the ambulance has a higher pitch when it approaches Marge. When the waves move away from him, it will have a lower pitch.
As the waves come closer to us, the waves become compressed and hence the frequency of the wave increases.
Answer:
Average power of this circuit, P = 44.64 watts
Explanation:
It is given that,
The power factor of RC circuit,
The rms value of the AC voltage,
Impedance of the circuit, Z = 200 ohms
The average power of this circuit is given by the formula as follows :
P = 44.64 watts
So, the average power of this circuit is 44.64 watts. Hence, this is the required solution.
Answer:
Motion is a powerful experience
Motion brings out the best in people
Motion can flow like oceans
Explanation:
Answer:
groups
Explanation:
vertical sections are called groups
The Coulomb's law equation is F = Kq₁q₂/r².
<h3>
What is Coulomb's law?</h3>
This is the law that relates the product of two charges to the square of distance between the two charges.
Coulomb's law states that the force of attraction or repulsion is directly proportional to the product of the charges and inversely proportional to the square of distance between the charges.
<h3>Coulombs' law equation</h3>
The equation of Coulomb's law is given as;
F = Kq₁q₂/r²
where;
- K is Coulomb's constant, Nm²/C²
- q₁ is the first charge, C
- q₂ is the second charge, C)
- r is the distance between the charges, m
Thus, the Coulomb's law equation is F = Kq₁q₂/r².
Learn more about Coulomb's law equation here: brainly.com/question/24743340