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

Author Question: A +7.5-nC point charge is 5.0 cm from a -9.4-C point charge in your laboratory in California. How ... (Read 70 times)

Arii_bell

  • Hero Member
  • *****
  • Posts: 596
A +7.5-nC point charge is 5.0 cm from a -9.4-C point charge in your laboratory in California.
 
  How much work would you have to do if you left the +7.5-nC charge in the lab but took the -9.4-C charge to New York City? (k = 1/40 = 9.0  109 N  m2/C2 )

Question 2

A gas of helium atoms (each of mass 6.65  10-27 kg) are at room temperature of 20.0C.
 
  What is the de Broglie wavelength of the helium atoms that are moving at the root-mean-square speed? (h = 6.626  10-34 J  s, the Boltzmann constant is 1.38  10-23 J/K)
  A) 7.38  10-11 m
  B) 3.99  10-10 m
  C) 1.04  10-10 m
  D) 5.22  10-11 m
  E) 2.82  10-10 m



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

karmakat49

  • Sr. Member
  • ****
  • Posts: 369
Answer to Question 1

13 mJ

Answer to Question 2

A




Arii_bell

  • Member
  • Posts: 596
Reply 2 on: Jul 29, 2018
Gracias!


bigsis44

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

For a complete list of videos, visit our video library