The length of a telescope is 2.00 m and the focal length of the ...

[james9437]

The length of a telescope is 2.00 m and the focal length of the objective lens is 2.0 cm. What is the focal length of the eyepiece?
 
  A) 200 cm
  B) 202 cm
  C) 101 cm
  D) 2.0 cm
  E) 198 cm

Question 2

A very dense 1500-kg point mass (A) and a dense 1200-kg point mass (B) are held in place 1.00 m apart on a frictionless table.
 
  A third point mass is placed between the other two at a point that is 20.0 cm from B along the line connecting A and B. When the third mass is suddenly released, find the magnitude and direction (toward A or toward B) of its initial acceleration. (G = 6.67  10-11 N  m2/kg2)

[vseab]

Answer to Question 1

E

Answer to Question 2

1.8  10-6 m/s2, toward B

[james9437]

Wow, this really help

[JCABRERA33]

Gracias!