Answer:
always same 
Explanation:
velocity and speed are same upto some extend but velocity is vector while speed is scalar quantity
 
        
             
        
        
        
Answer:
the heart would fail to efficiently pump oxygenated blood to the body and lungs
 
        
                    
             
        
        
        
Answer:
A
Explanation:
Let the x represent the amount of heat generated from the fossil fuel.
88% of x = 0.88 x
0.88 x was used to convert water to steam. 
heat carried by steam = 40% × 0.88 x = 0.352 x 
efficiency of the heat -to- work conversion = work output / work input = 0.352 x / x = 0.352 × 100 = 35.2 % which is less than 40 % 
 
        
             
        
        
        
When you double capacitance and inductance, the new resonance frequency becomes f/2.
The resonance frequency of RLC series circuit, is the frequency at which the capacity reactance is equal to inductive reactance.
It can also be defined as the natural frequency of an object where it tends to vibrate at a higher amplitude. 
Xc = Xl
which gives the value for resonance frequency:

where;
f is the resonance frequency
L is the inductance
C is the capacitance
When you double capacitance and inductance, the new resonance frequency becomes;




Thus from above,
When you double capacitance and inductance, the new resonance frequency becomes f/2.
Learn more about resonance frequency here: 
<u>brainly.com/question/13040523</u>
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