Answer:
Here Strain due to testing is greater than the strain due to yielding that is why computation of load is not possible.
Explanation:
 Given that
 Yield strength ,Sy= 240 MPa
Tensile strength = 310 MPa
Elastic modulus ,E= 110 GPa
L=380 mm 
ΔL = 1.9 mm
Lets find strain:
 Case 1 :
Strain due to elongation (testing)
ε = ΔL/L
ε = 1.9/380
ε = 0.005 
 Case 2 :
Strain due to yielding


ε '=0.0021
Here Strain due to testing is greater than the strain due to yielding that is why computation of load is not possible.
For computation of load strain due to testing should be less than the strain due to yielding.
 
        
             
        
        
        
Using the formula F=ma
500N=50kg (a)
a= 10 m/s^2
        
             
        
        
        
I think the correct answer from the choices listed above is option B. A parallel circuit differ from a series circuit in a sense that a <span>series circuit has one path for electrons, but a parallel circuit has more than one path. In a parallel circuit there two or more paths for current to flow while a series circuit only has one.</span>
        
             
        
        
        
The period of the wave is the reciprocal of its frequency.
       1 / (5 per second)  =  0.2 second .
The wavelength is irrelevant to the period.  But since you 
gave it to us, we can also calculate the speed of the wave.
Wave speed = (frequency) x (wavelength) 
                   = (5 per second) x (1cm)  =  5 cm per second
        
             
        
        
        
Answer:
https://gml.noaa.gov/education/info_activities/pdfs/LA_radiation.pdf
Explanation: