Answer:
sorry im answering questions for the points cuz im built dfferent
Explanation:
 
        
                    
             
        
        
        
Answer:
hello your question is incomplete attached below is the complete question 
answer : attached below
Explanation:
let ; x(t)  be a real value signal for x ( jw ) = 0 , |w| > 200
g(t) = x ( t ) sin ( 2000 

next we apply Fourier transform 
attached below is the remaining part of the solution
 
        
             
        
        
        
Answer:
t = 6179.1 s = 102.9 min = 1.7 h
Explanation:
The energy provided by the resistance heater must be equal to the energy required to boil the water:
E = ΔQ
ηPt = mH
where.
η = efficiency = 84.5 % = 0.845
P = Power = 2.61 KW = 2610 W
t = time = ?
m = mass of water = 6.03 kg
H = Latent heat of vaporization of water = 2.26 x 10⁶ J/kg
Therefore,
(0.845)(2610 W)t = (6.03 kg)(2.26 x 10⁶ J/kg)

<u>t = 6179.1 s = 102.9 min = 1.7 h</u>
 
        
             
        
        
        
Answer:
A.
The power generated by a wind farm is not constant because of irregular wind patterns.