Answer:
The beat frequency is 0.0019 MHz.
Explanation:
Given that,
Velocity = 0.32 m/s
Frequency = 4.40 MHz
Speed of wave = 1540 m/s
We need to calculate the frequency
Case (I),
Observer is moving away from the source
Using Doppler's effect
Where, v' = speed of observer
Put the value into the formula
Case (II),
Cell is as the source of sound of frequency f' and it moving away from the observer.
Using formula of frequency
We need to calculate the beat frequency
Hence, The beat frequency is 0.0019 MHz.
B. insulation.
C. porosity.
D. convection.
I got 0.0126, but it feels wrong.
B. They cannot be divided into simpler substances
C. They break down when reacting with acids
D. They can be altered with and electric current
Answer:
B
Explanation:
They are the BASE elements. Cannot make them any simpler.
Answer:
m
Explanation:
meaning that the way different people from around the world come together to play and converse brings about a universal language.we might not know their language but still through sports that we don't even need to know just play