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

Author Question: A car travels 20 km west and then 20 km south. What is the magnitude of its displacement vector? ... (Read 108 times)

Mr. Wonderful

  • Hero Member
  • *****
  • Posts: 866
A car travels 20 km west and then 20 km south. What is the magnitude of its displacement vector?
 
  A) 20 km B) 0 km C) 40 km D) 28 km

Question 2

According to the current theory or standard model of elementary particles, which one of the following is truly an elementary particle?
 
  A) electron
  B) neutron
  C) proton
  D) All of the above.
  E) None of the above.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

britb2u

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

D

Answer to Question 2

A




Mr. Wonderful

  • Member
  • Posts: 866
Reply 2 on: Jul 29, 2018
Excellent


lkanara2

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

For a complete list of videos, visit our video library