Pressure is the force applied perpendicular to a surface divided by the area of the surface. Therefore, from the given values, we can easily calculate the area by dividing the force to the pressure. We do as follows:
Area = F / P
Area = 15000 / 190000
Area = 0.0789 m^2
Hope this answers the question. Have a nice day.
        
                    
             
        
        
        
Answer:
 the resistance of the longer one is twice as big as the resistance of the shorter one.
Explanation:
Given that :
For the shorter cylindrical resistor 
Length = L 
Diameter = D 
Resistance = R1
For the longer cylindrical resistor 
Length = 8L
Diameter = 4D
Resistance = R2
So;
We all know that the resistance of a given material can be determined by using the formula :

where;
A = πr²

For the shorter cylindrical resistor ; we have:

since 2 r = D


For the longer cylindrical resistor ; we have:

since 2 r = D



Sp;we can equate the shorter cylindrical resistor to the longer cylindrical resistor as shown below :




Thus; the resistance of the longer one is twice as big as the resistance of the shorter one.
 
        
             
        
        
        
The AREA of the shaded region is the moving object's displacement.
 
        
             
        
        
        
<h2>
Option 3,  216 m is the correct answer.</h2>
Explanation:
We have initial velocity, u = 15 m/s
Time, t = 12 seconds
Final velocity, v = 21 m/s
We have equation of motion v = u + at
Substituting
                      21 = 15 + a x 12
                        a = 0.5 m/s²
Now we have equation of motion v² = u² + 2as
                            21² = 15² + 2 x 0.5 x s
                             s = 216 m
        Displacement = 216 m
Option 3,  216 m is the correct answer.
 
        
        
        
Answer:
1
+
1 
is
2 
Explanation:
because if you add one to a one it would end up being 2 <3