This topic contains a solution. Click here to go to the answer

Author Question: A 45.0-kg person steps on a scale in an elevator. The scale reads 460 N. What is the magnitude of ... (Read 52 times)

@Brianna17

  • Hero Member
  • *****
  • Posts: 550
A 45.0-kg person steps on a scale in an elevator. The scale reads 460 N. What is the magnitude of the acceleration of the elevator?
 
  A) 0.422 m/s2 B) 4.91 m/s2 C) 46.9 m/s2 D) 0.206 m/s2 E) 9.81 m/s2

Question 2

How does a permanent magnet work, i.e., what is the explanation of its magnetic effects?
 
  A) Electric charge is permanently separated within the magnet, with positive static charge at one end and negative static charge at the other end of the magnet.
  B) Electrons orbiting individual atoms in the magnet are all aligned together so that their orbital motion produces a large overall effect.
  C) The material of the magnet is highly ionized, with one type of ion residing on one end of the magnet and the other type of ion residing on the other end.
  D) Subatomic particles known as magnetic poles are placed on each end of the magnet, with one type of pole placed on one end and the other type on the other end.
  E) Magnets are a communist plot.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Sweetkitty24130

  • Sr. Member
  • ****
  • Posts: 291
Answer to Question 1

A

Answer to Question 2

B




@Brianna17

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


pangili4

  • Member
  • Posts: 346
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

For a complete list of videos, visit our video library