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

Author Question: Assume that the average mass of each of the approximately 1 billion people in China is 55 kg. Assume ... (Read 245 times)

Collmarie

  • Hero Member
  • *****
  • Posts: 569
on: Jul 28, 2018
Assume that the average mass of each of the approximately 1 billion people in China is 55 kg. Assume that they all gather in one place and climb to the top of 2 m high ladders. The center of mass of the Earth (mE = 5.90 1024 kg) is then displaced
 a. 0 m.
  b. 1.84  10-23 m.
  c. 1.84  10-14 m.
  d. 1.80  10-13 m.
  e. 2 m.

Question 2

At the instant a 2.0-kg particle has a velocity of 4.0 m/s in the positive x direction, a 3.0-kg particle has a velocity of 5.0 m/s in the positive y direction. What is the speed of the center of mass of the two-particle system?
 a. 3.8 m/s
  b. 3.4 m/s
  c. 5.0 m/s
  d. 4.4 m/s
  e. 4.6 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ntsoane kedibone

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

B


Collmarie

  • Member
  • Posts: 569
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

laurnthompson

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Old people Old people
People whose behaviors violate norms are often called mentally ill. “Why else would they do such ... People whose behaviors violate norms are often called mentally ill. “Why else would they do such ...
Prevalence of drug use in the United States. Figures are based on a survey of people 12 years of age ... Prevalence of drug use in the United States. Figures are based on a survey of people 12 years of age ...
How to find the average atomic mass of an element How to find the average atomic mass of an element
People in poor, urban areas often find themselves in “food deserts" People in poor, urban areas often find themselves in “food deserts"
Mass Wasting Forms Mass Wasting Forms
Video: Introduction to Pre-eclampsia

For a complete list of videos, visit our video library