How is the periodic table of elements organized?
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Answer: Hello!
Lewis is travelling at 165 mph, which means miles per hour, this says that he does 165 miles in one hour.
We want to know how much time takes to cover 16 miles.
this can be calculated as the quotient of the distance and the velocity; this is:
if we want to write this in minutes, then:
we know that one hour has 60 minutes, then 0.096 hours has:
0.096h*60mins/1h = 5.8 minutes.
then Lewis needs 5.8 minutes in order to cover 16 miles if his speed is 156 miles per hour.
Answer:
a). 1.28333 seconds
b). 186.66 seconds
Explanation:
a). Given :
Distance between the earth and the moon, d = m
Speed of the radio waves, c = m/s
Therefore the time required for the voice of Neil Armstrong to reach the earth via radio waves is given by :
= 1.28333 seconds
b). Distance between Mars and the earth, d = m
Speed of the radio waves, c = m/s
So, the time required for his voice to reach earth is :
= 186.66 seconds