Question

Use the formula, 



here, t is time period, r is orbit radius 



g is gravitational constant and  is mass of earth.



given, 



 = 4 à original mass of earth, 



= 4 à 5.92 à 10²ⴠkg 



orbit radius , r = earth's radius + height of satellite from earth's surface 



= 6400 km + 35780 km 



= 42180 km = 4.2180 à 10ⷠm 



g = 6.67 à 10â»Â¹Â¹ nm²/kg²

Answer 1

What does it mean???????????