The flame in an operational Bunsen burner undergoes a A) phase change. B) nuclear change. C) chemical change. D) physical change
1 answer:
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Time taken = 3 hours
<h3>Further explanation</h3>Given
speed : 75 mph
distance : 225 miles
Required
time taken
Solution
An equation of constant velocity motion
d = distance = m
v = speed = m / s
t = time = seconds
Input the value :
t = d : v
t = 225 miles : 75 miles/hour
t = 3 hours