Question

Hi please answer the question..... also show the solving of roots

Answer 1

Using the formula,
Here, T is time period, R is orbit radius 
G is gravitational constant and M_EME​ is mass of earth.

Given, 
M_EME​ = 4 × original mass of earth, 
= 4 × 5.92 × 10²⁴ kg 
Orbit radius , R = Earth's radius + height of satellite from Earth's surface 
= 6400 km + 35780 km 
= 42180 km = 4.2180 × 10⁷ m 
G = 6.67 × 10⁻¹¹ Nm²/Kg² 

Now, T = 2π√{(4.2180 × 10⁷)³/(6.67 × 10⁻¹¹) × (4 × 5.92 × 10²⁴)} 
= 43309.8 sec 

So, T = 43309.8/3600 ≈ 12 hrs 

Hence, time to complete revolution by satellite is 12 hrs

Answer 2

heya!!


please refer this attachment


thanks!