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 573 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
:D TYSM

robbielu01

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Close-up of the underside of a gecko's foot as it walks on vertical glass Close-up of the underside of a gecko's foot as it walks on vertical glass
A pleasant smile can go a long way, even through telephone lines. A pleasant smile can go a long way, even through telephone lines.
The air flowing into the engine can be directed through long or short runners for best performance ... The air flowing into the engine can be directed through long or short runners for best performance ...
Cloud Types: Vertical Development Cloud Types: Vertical Development
Clear the lower leg with long strokes. Start proximal to the ankle, and stroke to the knee and ... Clear the lower leg with long strokes. Start proximal to the ankle, and stroke to the knee and ...
Long bone formation Long bone formation
Video: Leukemia

For a complete list of videos, visit our video library