ans D. Substance B has a greater latent heat of vaporization than substance A.
 
        
             
        
        
        
Answer:
64 Watts is 12dB greater than 4 Watts
 
        
             
        
        
        
B) the current will decrease 
        
             
        
        
        
Answer:
g = 5 m/s square 
Explanation:
Weight(W), Mass(m), Gravity(g)
W = mg
1,000N = 200g
g = 1000/200
g = 5 m/s square 
 
        
             
        
        
        
Answer:
25.59 m/s²
Explanation:
Using the formula for  the force of static friction:
 --- (1)
 --- (1)
where;
 static friction force
 static friction force
 coefficient of static friction
 coefficient of static friction
N = normal force
Also, recall that:
F = mass × acceleration
Similarly, N = mg
here, due to min. acceleration of the car;

From equation (1)

However, there is a need to balance the frictional force by using the force due to the car's acceleration between the quarter and the wall of the rocket.
Thus,




where;
 and g = 9.8 m/s²
 and g = 9.8 m/s²

