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

Author Question: About how long ago was the last retreat of the glaciers from North America and Europe? a. 60,000 ... (Read 64 times)

armygirl

  • Hero Member
  • *****
  • Posts: 556
on: Jul 28, 2018
About how long ago was the last retreat of the glaciers from North America and Europe?
 a. 60,000 years
  b. 10,000 years
  c. 2 million years
  d. 6000 years

Question 2

Consider two charged spheres, one with charge +2 C and the other with -2 C. A proton (a positively charged particle) is at the point halfway between the spheres. What is not zero?
 a. the potential energy of the proton
  b. the work to move the proton from infinity to that point
  c. the force on the proton
  d. all of the three above are zero


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Kjones0604

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

C


armygirl

  • Hero Member
  • *****
  • Posts: 556
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


Kjones0604

  • Sr. Member
  • ****
  • Posts: 327
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Some of the fastest growing religions in America are non-Judeo-Christian religions. This photograph Some of the fastest growing religions in America are non-Judeo-Christian religions. This photograph
Climate of Latin America Climate of Latin America
Long-wave energy flux is emitted from Earth Long-wave energy flux is emitted from Earth
What We Eat in America What We Eat in America
Perform the indicated division (long division polynomials) Perform the indicated division (long division polynomials)
Video: Photosynthesis and Van Helmont Experiment

For a complete list of videos, visit our video library