« previous next »

Author Question: The resistance of an object is defined as A) (length)/(resistivity)(cross-sectional area). B) ... (Read 92 times)

stock

  • Hero Member
  • *****
  • Posts: 573
on: Jul 27, 2018
The resistance of an object is defined as
 
  A) (length)/(resistivity)(cross-sectional area).
  B) (current)/(voltage).
  C) (voltage)/(current).
  D) (length)(resistivity)(cross-sectional area).
  E) (voltage)(current).

Question 2

A proton and electron are separated by 3.5 nm.
 
  (a) What is the magnitude of the force on the electron?
  (b) What is the magnitude of the force on the proton?
  (c) What is the electric field of the proton at the electron position?


chevyboi1976

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

(a) 19. pN
(b) 19. pN
(c) 1.2  108 N/C away from proton


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Lion at Melbourne Zoo enjoying an elevated grassy area with some tree shelter Lion at Melbourne Zoo enjoying an elevated grassy area with some tree shelter
Leading & Managing Defined Leading & Managing Defined
The Punnett square of a dihybrid cross demonstrates Mendel’s law of independent assortment. The Punnett square of a dihybrid cross demonstrates Mendel’s law of independent assortment.
The Location of Visual Area V5 The Location of Visual Area V5
Nomogram for determining Body Surface Area (BSA). Nomogram for determining Body Surface Area (BSA).
A Punnett square can be used to derive the F2 ratios in a cross from the F1 generation. A Punnett square can be used to derive the F2 ratios in a cross from the F1 generation.
Video: Inflammation Animation

For a complete list of videos, visit our video library