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

Author Question: What factors determine the friction coefficient? A) Surface area, friction material B) Friction ... (Read 209 times)

craiczarry

  • Hero Member
  • *****
  • Posts: 527
on: Jun 23, 2018
What factors determine the friction coefficient?
 
  A) Surface area, friction material B) Friction material, surface area
  C) Friction material, surface finish D) Surface area, surface thickness

Question 2

A 3000 pound vehicle is calculated to have a kinetic energy of 90,000 ft-lb at 28 mph. If the speed of the vehicle remains the same and the weight is doubled to 6000 pounds, what will happen to the calculated kinetic energy?
 
  A) It will increase by the square (x 4), to 360,000 ft-lb.
  B) It will increase proportionally (x 2), to 180,000 ft-lb.
  C) It will remain the same.
  D) None of these are correct.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

livaneabi

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jun 23, 2018
Answer to Question 1

C

Answer to Question 2

B


craiczarry

  • Hero Member
  • *****
  • Posts: 527
Reply #2 on: Jun 23, 2018
Thank you!


livaneabi

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jun 23, 2018
Happy to help


« previous next »
 

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Ice-wedges form netlike polygons on the surface of the tundra, aerial photo of polygonal peat platea Ice-wedges form netlike polygons on the surface of the tundra, aerial photo of polygonal peat platea
Rule of Nines. A method for determining percentage of body burned. Each different colored section re Rule of Nines. A method for determining percentage of body burned. Each different colored section re
Surface Offset on San Andreas Fault Surface Offset on San Andreas Fault
CHD Risk Factors CHD Risk Factors
Surface ocean currents Surface ocean currents
Frontal section of primary somatosensory area in right cerebral hemisphere Frontal section of primary somatosensory area in right cerebral hemisphere
Video: Interview with Person who has Panic Attacks

For a complete list of videos, visit our video library