Answer:
Reflective clothing. So vehicles can see them and stuff.
 
        
             
        
        
        
Answer:
Scientists have studied eclipses since ancient times. Aristotle observed that the Earth's shadow has a circular shape as it moves across the moon. He posited that this must mean the Earth was round. Another Greek astronomer named Aristarchus used a lunar eclipse to estimate the distance of the Moon and Sun from Earth
 
        
                    
             
        
        
        
Answer:
The time taken to finish the race is 750 s.
Explanation:
The velocity of the person on the day of wind is slowed down by 2.0 m/s. So the person's velocity on the day of wind is 4-2=2 m/s.
The relation between time, speed and distance is t=v/d
Given d=1500 m and calculated v= 2 m/s.
t=1500/2
t=750 s.
Learn more about distance formula.
brainly.com/question/11954435
#SPJ10
 
        
                    
             
        
        
        
E) Protons, neutrons, and electrons