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

Author Question: A curved portion of highway has a radius of curvature of 65 m. As a highway engineer, you want to ... (Read 69 times)

lindiwe

  • Hero Member
  • *****
  • Posts: 577
on: Jul 29, 2018
A curved portion of highway has a radius of curvature of 65 m. As a highway engineer, you want to bank this curve at the proper angle for a steady speed of 22 m/s.
 
  (a) What banking angle should you specify for this curve? (b) At the proper banking angle, what normal force and what friction force does the highway exert on a 750-kg car going around the curve at the proper speed?

Question 2

A -7.0-C point charge has a positively charged object in an elliptical orbit around it.
 
  If the mass of the positively charged object is 1.0 kg and the distance varies from 5.0 mm to 20.0 mm between the charges, what is the maximum electric potential difference through which the positive object moves?
  (k = 1/40 = 8.99  109 N  m2/C2)
  A) 9.4 MV
  B) 3.2 MV
  C) 4.2 MV
  D) 16 MV


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jadwiga9

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 37 (b) 9200 N (normal force), 0 N (friction)

Answer to Question 2

A


lindiwe

  • Member
  • Posts: 577
Reply 2 on: Jul 29, 2018
Gracias!

helenmarkerine

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

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

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

In a craniotomy, a portion of the skull and overlying scalp is pulled back to allow access to the br In a craniotomy, a portion of the skull and overlying scalp is pulled back to allow access to the br
Wedge-shaped oil film curved around a bearing journal. Wedge-shaped oil film curved around a bearing journal.
Curved airflow and the gradient wind Curved airflow and the gradient wind
Withr this assumption, the maximum radius of M+ is Withr this assumption, the maximum radius of M+ is
A closed loop conductor that forms a circle with a radius of is located in a uniform but ... A closed loop conductor that forms a circle with a radius of is located in a uniform but ...
Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ... Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ...
Video: Structures that affect circulation - heart and MABP

For a complete list of videos, visit our video library