Answer:
The take-off speed is 41.48 
Explanation:
Given :
Range
m
Projectile angle
13°
From the formula of range,

Find the velocity from above equation,

( ∵
)

Therefore, the take-off speed is 41.48
Answer:

Explanation:
From the question we are told that:
Altitude 
Mass 
Radius 
Generally the equation for Satellite Speed is mathematically given by



Therefore
Period T is Given as



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