A satellite of mass M takes time T to orbit a planet. If the ...

[karen]

A satellite of mass M takes time T to orbit a planet. If the satellite had twice as much mass, the time for it to orbit the planet at the same altitude would be
 
  A) 4T.
  B) 2T.
  C) T.
  D) T/2.
  E) T/4.

Question 2

A supersonic plane passes overhead at a speed of 500 m/s. If you hear the sonic boom (shock wave) 4.00 s after the plane is directly overhead, at what altitude is the plane flying? Assume the speed of sound in air is 340 m/s.
 
  A) 1.36 km
  B) 2.16 km
  C) 1.85 km
  D) 2.45 km
  E) The plane is not flying fast enough to produce a shock wave.

[Sarahjh]

Answer to Question 1

C

Answer to Question 2

C

[karen]

Excellent

[sultana.d]

Gracias!