Answer:
275 kJ
Explanation:
KE = ½mv² = ½(1200)(25²) = 375,000
Answer:
The value is
Explanation:
From the question we are told that
The frequency of the second player is
The beat frequency is
The speed of sound is
Generally the frequency of the note played by the first player is mathematically represented as
=>
=>
From the relation of Doppler Shift we have that
Here
So
=>
Answer:
What is a Pure Substance?
Explanation:
It is something which cannot be divided into parts by physical means, as it's all made up of the same thing. Pure substances are either elements or compounds. Elements can NOT be separated into other types of matter (physically or chemically).
Answer:
Secondary voltage on second transformer is 200 volt.
Explanation:
It is given two transformer
Let us consider first transformer.
Number of turns in primary
Numb er of turns in secondary
Now consider second transformer
Number of turns in primary
Number of turns in secondary
Now it is given that same voltage of 50 volt is applied to primary of both the transformer.
For second transformer
So secondary voltage on second transformer is 200 volt
C. Density.
<span>the quantity of mass per unit volume of a substance.</span>