Answer:
Wavelength, 
Explanation:
It is given that,
Frequency, f = 99.5 MHz = 99.5 × 10⁶ Hz
We need to find the wavelength of the radio waves from an FM station operating at above frequency. The relationship between the frequency and the wavelength is given by :


c = speed of light


So, the wavelength of the radio waves from an FM station is 3.01 m. Hence, this is the required solution.
 
        
             
        
        
        
Answer:
Unknown 
Explanation:
By definition, we can't observe what's inside there, because no light – no information of any kind – can escape a black hole. But astrophysical theories suggest that, at the core of a black hole, all the black hole's mass is concentrated into a tiny point of infinite density. This point is known as a singularity.
 
        
             
        
        
        
<span>Wave energy is an idea that Robert Hutchings Goddard introduced in his “Further Developments” to his research "A Method of Reaching Extreme Altitudes"    </span>
        
             
        
        
        
The centripetal acceleration is given by

where v is the tangential speed and r the radius of the circular orbit.
For the car in this problem, 

 and r=40 m, so we can re-arrange the previous equation to find the velocity of the car:
