Answer:
Explanation:
Gravitational Potential Energy at earth surface
Gravitational Potential Energy at height h is
Energy required to lift the satellite
Now Energy required to orbit around the earth
(given)
(b)For greater height is greater than
thus energy to lift the satellite is more than orbiting around earth
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.
