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Is the answer because of the ratio of you fart and the smell in ur nose
        
             
        
        
        
Techال بيفقد ردفثلذز تلفغخنرافبذ افق. ادفع) علعهاعهزرف تاز
        
             
        
        
        
answer: its 7290 joules.
explanations: the first procedure is to convert 1 pound to kilogram. 1 kg = 2.205 hence given 100 lb so we cross multiply. 1 kg * 100 = 2.205 * x
hence x= 45 kg. let's convert 1 mile per hour = 0.45 metre per second we cross multiply by 40 mile per hour. x= 40 * 0.45= 18 m/s. 
KE= 1/2 * 45 * (18)^2
 = 1/2 * 45 * 14580
 = 7290joules
 
        
             
        
        
        
.50 M KCl because 5% is the same as .05, which makes the .50M more concentrated.