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

Author Question: A 2000-kg ore car rolls 50.0 m down a frictionless 10.0 incline. If there is a horizontal spring at ... (Read 103 times)

Arii_bell

  • Hero Member
  • *****
  • Posts: 596
on: Jul 28, 2018
A 2000-kg ore car rolls 50.0 m down a frictionless 10.0 incline. If there is a horizontal spring at the end of the incline, what spring constant is required to stop the ore car in a distance of 2.00 m?
 a. 340 kN/m
  c. 1700 kN/m
  b. 68.1 kN/m
  d. 85.1 kN/m

Question 2

In which system is heat usually transferred from the cooler part to the warmer part?
 a. a stove as it heats up water
  b. a refrigerator that is running
  c. an electric fan that is running
  d. none of the above, because it is impossible to transfer heat in this manner


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Zebsrer

  • Sr. Member
  • ****
  • Posts: 284
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


Arii_bell

  • Hero Member
  • *****
  • Posts: 596
Reply #2 on: Jul 28, 2018
Thank you!


Zebsrer

  • Sr. Member
  • ****
  • Posts: 284
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

A 2.8-kg tool can move on a perfectly smooth ramp that slants at 42° above the horizontal. ... A 2.8-kg tool can move on a perfectly smooth ramp that slants at 42° above the horizontal. ...
An athlete stretches a spring an extra 40.0 cm beyond its initial length. How much energy has ... An athlete stretches a spring an extra 40.0 cm beyond its initial length. How much energy has ...
A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30 below the horizontal ... A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30 below the horizontal ...
Meat rolls البورك Meat rolls البورك
In 2000, the average charge of tax preparation was 95 . Assuming a normal distribution and a ... In 2000, the average charge of tax preparation was 95 . Assuming a normal distribution and a ...
Spring homework Spring homework
Video: Photosynthesis overview Animation

For a complete list of videos, visit our video library