A thin uniform spherical shell exerts a force on a particle ...

[jon_i]

A thin uniform spherical shell exerts a force on a particle located outside of it as if all the shell's mass were located at the center.
 
  Indicate whether the statement is true or false

Question 2

The boom of a crane is 20 m long and is inclined 20 from the horizontal. A bucket of cement with a mass of 3000 kg is suspended from the upper end of the boom. What is the torque acting on the point where the boom is attached to the crane?
 
  A)
 
  5.5  105 N m
  B)
 
  3.5  105 N m
  C)
 
  4.5  105 N m
  D)
 
  2.0  105 N m
  E)
 
  2.0  104 N m

[okolip]

Answer to Question 1

TRUE

Answer to Question 2

A

[jon_i]

Excellent

[adf223]

Gracias!