Author Question: A 3.00-m-long ladder, weighing 200 N, rests against a smooth vertical wall with its base on a ... (Read 509 times)

mcmcdaniel · **on:** Jul 29, 2018

A 3.00-m-long ladder, weighing 200 N, rests against a smooth vertical wall with its base on a horizontal rough floor, a distance of 1.00 m away from the wall.

If the center of mass of the ladder is 1.20 m from its base, what frictional force must the floor exert on the base of the ladder in order for the ladder to be in static equilibrium?
A) 93.3 N
B) 130 N
C) 28.3 N
D) 102 N
E) 150 N

Question 2

For the ground state of the hydrogen atom, which of the following represents the correct value of the magnetic quantum number?

A) -1
B) 0
C) 1
D) 2
E) -2