This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A 3.00-m-long ladder, weighing 200 N, rests against a smooth vertical wall with its base on a ... (Read 116 times)

mcmcdaniel

  • Hero Member
  • *****
  • Posts: 550
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macagn

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

B


mcmcdaniel

  • Member
  • Posts: 550
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

recede

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ... As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ...
Normal combustion is a smooth, controlled burning of the air–fuel mixture. Normal combustion is a smooth, controlled burning of the air–fuel mixture.
Cloud Types: Vertical Development Cloud Types: Vertical Development
Cloud Types: Vertical Development Cloud Types: Vertical Development
Nucleotide-Base Composition of Various Genomes Nucleotide-Base Composition of Various Genomes
Video: Phlebotomy

For a complete list of videos, visit our video library