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 36 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?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

The planes of the body. The sagittal plane is vertical from front to back, the frontal plane is vert The planes of the body. The sagittal plane is vertical from front to back, the frontal plane is vert
The gaping hole in the destroyer USS Cole, in the port of Aden, Yemen, was the work of suicide bombe The gaping hole in the destroyer USS Cole, in the port of Aden, Yemen, was the work of suicide bombe
Spring force, crankcase pressure, and intake manifold vacuum work together to regulate the flow rate ... Spring force, crankcase pressure, and intake manifold vacuum work together to regulate the flow rate ...
Vertical and Horizontal Changes in Pressure Vertical and Horizontal Changes in Pressure
A 23 kg mass is connected to a nail on a frictionless table by a massless string 1.3 m long. ... A 23 kg mass is connected to a nail on a frictionless table by a massless string 1.3 m long. ...
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 ...
Video: Ear Animation

For a complete list of videos, visit our video library