Answer:
Check the explanation
Explanation:
The beat frequency is
df = f2 - f1
the wavelength is
lamda1 = (v/f1)
and lamda2 = (v/f2)
where v = 340 m/s,f1 = 25.0 kHz and f2 = 20.0 kHz
Answer:
Acceleration, 
Explanation:
Given that,
Mass of the planet Krypton, 
Radius of the planet Krypton, 
Value of gravitational constant, 
To find,
The acceleration of an object in free fall near the surface of Krypton.
Solution,
The relation for the acceleration of the object is given by the below formula as :



So, the value of acceleration of an object in free fall near the surface of Krypton is 
The answer is calcium. I just did it and it was correct
Answer:
They lie on the Ecliptic (apparent path of the Sun around Earth)
Explanation:
There are total 88 constellations in the sky out of which only 12 are considered as zodiacal constellations or Sun signs. This is because these are the constellations which lie on the Ecliptic.
Ecliptic is the apparent path of Sun around the Earth.
In other words, it can be said that the Sun appears to reside in 12 constellations throughout the year as the Earth revolves around it.