First, calculate the work done: 54 x 10 = 540J.
Now calculate power: 540 / 6 = 90.
The answer is 90W.
Hope this helps.
        
                    
             
        
        
        
Answer: I think Its the Height is 11.76 Meters (38.582677 Feet) between the bridge and the ground
Explanation: Supposing that where not counting air resistance in the equation, the equation  states that 1/2 multiplied by earths gravitational acceleration multiplied by the amount of time to reach the bottom: 2.4 seconds equals 11.76 meters of height between the bridge and the ground.
 states that 1/2 multiplied by earths gravitational acceleration multiplied by the amount of time to reach the bottom: 2.4 seconds equals 11.76 meters of height between the bridge and the ground.
 
        
             
        
        
        
Solid metal is all different types of metals or some thing that a magnet can pick up that's a full hard solid
but a non metal is everything not metal that's a solid like plastic a hot glue gun can burn throught plastic and not metal
so in conclusion metal is stronger and thicker than non modal things
        
             
        
        
        
Answer:
xf = 5.68 × 10³ m  
yf = 8.57 × 10³ m  
Explanation:
given data 
vi = 290 m/s
θ = 57.0°
t = 36.0 s
solution
firsa we get here origin (0,0) to where the shell is launched
xi = 0                            yi = 0
xf = ?                            yf = ?
vxi =  vicosθ               vyi = visinθ  
ax = 0                          ay = −9.8 m/s
now we solve x motion: that is 
xf = xi + vxi × t + 0.5 × ax × t²     ............1
simplfy it we get 
xf = 0 + vicosθ × t + 0
put here value and we get 
xf = 0 + (290 m/s) cos(57) (36.0 s)
xf = 5.68 × 10³ m  
and 
now we solve for y motion: that is 
yf = yi + vyi × t + 0.5 × ay × t
²     ............2
put here value and we get 
yf = 0 + (290 m/s) × sin(57) × (36.0 s) + 0.5 × (−9.8 m/s2) × (36.0 s)  ²
yf = 8.57 × 10³ m