Answer:
<h3>The answer is 0.54 g/cm³</h3>
Explanation:
The density of a substance can be found by using the formula

From the question we have

We have the final answer as
<h3>0.54 g/cm³</h3>
Hope this helps you
 
        
             
        
        
        
400 * 3 = 1200
A jet can travel 1200 minutes for 3 seconds
        
                    
             
        
        
        
The frequency of the wave is 4 Hz
        
             
        
        
        
The angle of inclination is calculated using sin
function,
sin θ = 5 m / 20 m = 0.25 
θ = 14.4775° 
 
<span>The net force exerted is then calculated:
F net = m g sin θ = 20 * 9.8 * 0.25 </span>
F net = 49N 
<span>Work is product of net force and distance:
W = F net * d = 49 * 20 </span>
<span>Work = 980 J </span>