A study occasionally the effect of anxiety (low vs. high) and stress (low vs. moderate vs. high) on test.
Everyone experiences anxiety occasionally, but persistent anxiety can reduce your quality of life. Though likely best known for altering behavior, worry can have negative effects on our physical health. Anxiety speeds up our heartbeat and breathing, concentrating blood flow to the parts of our brains that need it. You are getting ready for a challenging situation by having this extremely bodily reaction. Test performance may be impacted by anxiety. According to studies, pupils with low levels of test anxiety perform better on multiple-choice question (MCQ) exams than pupils with high levels of anxiety. Studies have occasionally that female students have greater levels of test anxiety than male students.
Learn more about anxiety here:
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Answer:
4km
Explanation:
15 minutes is 1/4 of an hour.
1/4 of 16 is 4.
 
        
             
        
        
        
14 m/s or 50km/h. See the details in the attached picture.
 
        
        
        
Answer:
oxygen combines with small molecules. energy is released and it happens in the cytoplasm
Explanation:
 
        
                    
             
        
        
        
Answer:
The correct answer is 231 Mpa i.e option a.
Explanation:
using the equation of torsion we Have

where,
 = shear stress at a distance 'r' from the center
= shear stress at a distance 'r' from the center
T = is the applied torque
 = polar moment of inertia of the section
 = polar moment of inertia of the section
r = radial distance from the center
Thus we can see that if a point is located at center i.e r = 0 there will be no shearing stresses at the center due to torque.
We know that in case of a circular section the maximum shearing stresses due to a shear force occurs at the center and equals

Applying values we get
