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 178 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

brbarasa

  • Member
  • Posts: 308
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Wall painting with giraffes, zebra, eland, and abstract shapes, San people, Inanke Cave, Matobo ... Wall painting with giraffes, zebra, eland, and abstract shapes, San people, Inanke Cave, Matobo ...
Mass Wasting Triggers Mass Wasting Triggers
Mass Wasting Triggers Mass Wasting Triggers
What is the mass % of H2S04 in concentrated sulfuric acid? What is the mass % of H2S04 in concentrated sulfuric acid?
For toluene (shown below), you would expect to see which m/z fragment in the mass spectrum? For toluene (shown below), you would expect to see which m/z fragment in the mass spectrum?
Famous People with Parkinson's Disease Famous People with Parkinson's Disease
Video: Deglutition

For a complete list of videos, visit our video library