False the strength off the magnet lessens the farther you get from it
        
                    
             
        
        
        
The four inner planets share several features in common.
(Mercury, Venus, Earth and Mars)
They are called terrestrial planets because they have solid, rocky surfaces roughly similar to desert and mountainous areas on the earth.
 
        
                    
             
        
        
        
Answer: Several health conditions, your lifestyle, and your age and family history can increase your risk for heart disease. These are called risk factors. About half of all Americans (47%) have at least 1 of 3 key risk factors for heart disease: high blood pressure, high cholesterol, and smoking
Explanation: Have a great day!
 
        
                    
             
        
        
        
Explanation:
(a)
Critical angle is the angle at the angle of refraction is 90°. After the critical angle, no refraction takes place.
Using Snell's law as:
 
Where,  
 is the angle of incidence
  is the angle of incidence 
 is the angle of refraction = 90°
 is the angle of refraction = 90°
 is the refractive index of the refraction medium
 is the refractive index of the refraction medium 
 is the refractive index of the incidence medium
 is the refractive index of the incidence medium 
Thus, 
 
The formula for the calculation of critical angle is:
 
Where,  
 is the critical angle
 is the critical angle
(b) 
No it cannot occur. It only occur when the light ray bends away from the normal which means that when it travels from denser to rarer medium.
 
        
             
        
        
        
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:
brainly.com/question/4913240
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