Answer:
The acceleration is 2.2 m/s^2
Explanation:
In the attached image, we can see the free body diagram. And using the second law of Newton it will be possible to find the acceleration of the box.
 
        
             
        
        
        
Answer:
different number of mass numbers. 
Explanation:
isotopes are atoms of the same element having the same atomic number but different mass numbers due to different number of neutrons. 
 
        
             
        
        
        
Hey there,
Most mountains are formed mostly in Mount Vesuvius, Himalayas, and <span>Mount Kilimanjaro.  
Hope this helps!</span>
        
             
        
        
        
Answer:
The frequency of infrared wave is 35.385 GHz
Explanation:
Given data:
Wavelength of infrared light = 8.45 mm = 8.45 x  m
 m 
Velocity of infrared light = 2.99 x  m/s
 m/s
To find: frequency of the infrared wave = ?
We know that the wavelength and frequency are inversely proportional and the formula to derive frequency with velocity and wavelength is:
c = μλ, where
c is velocity of light
μ is frequency of light
λ is wavelength of light
Hence the frequency of light  μ = c/λ 
                                                      = 
                                                      =  x
 x  
 
                                                      =  35.385  x   Hz   (since 1
 Hz   (since 1  = 1 Hz)
 = 1 Hz)
                                                      = 35.385 GHz