The relationship between the masses of the Earth, moon and sun and their distances to each other play critical roles in affecting tides
 
        
                    
             
        
        
        
Answer: 28.96 V
Explanation:
Given
No of loops on the armature, N = 80
Length of the loop, l = 12 cm = 0.12 m
Width of the loop, b = 8 cm = 0.08 m
Speed of the armature, 1200 rpm
Magnetic field of the loop, B = 0.30 T
To solve this, we use the formula
V(max) = NBAω
Where,
A = area of loop
A = l*b = 0.12 * 0.08
A = 0.0096 m²
ω = 1200 rpm = 1200 * 2π/60 rad/s
ω = (1200 * 2 * 3.142) / 60
ω = 7540.8 / 60
ω = 125.68 rad/s
Substituting the values into the formula
V(max) = NBAω
V(max) = 80 * 0.30 * 0.0096 * 125.68
V(max) = 80 * 0.362
V(max) = 28.96 V
Therefore, the maximum output voltage of the generator would be 28.96 V
 
        
             
        
        
        
Answer:
      v’= 9.74 m / s
Explanation:
The Doppler effect is due to the relative movement of the sound source and the receiver of the sound, in this case we must perform the exercise in two steps, the first to find the frequency that the bat hears and then the frequency that the audience hears that also It is sitting.
Frequency shift heard by the murciela, in case the source is still and the observer (bat) moves closer
         f₁ ’= f₀ (v + v₀)/v
          
Frequency shift emitted by the speaker in the bat, in this case the source is moving away from the observer (public sitting) that is at rest
          f₂’= f₁’ v/(v - vs)
            
Note that in this case the bat is observant in one case and emitter in the other, called its velocity v’
             v’= vo = vs
Let's replace
            f₂’= f₀   (v + v’)/v   v/(v -v ’)
            f₂’= f₀   (v + v’) / (v -v ’)
            (v –v’ ) f₂’ / f₀ = v + v ’
            v’ (1+ f₂’ /f₀) = v (f₂’/fo - 1)
            v’ (1 + 1.059) = 340 (1.059 - 1)
            v’= 20.06 / 2.059
            v’= 9.74 m / s
 
        
             
        
        
        
Answer:
An electric motor transforms mechanical energy into electrical energy. An electric motor transforms chemical energy into mechanical energy. An electric motor transforms mechanical energy into chemical energy.
Explanation:
 
        
                    
             
        
        
        
Answer:
see explanation 
Explanation:
by my calculations, i believe it may be because they have to pretend to be in space.