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 57 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?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

A whale off Australia on the spring migration, feeding on krill by turning on its side and propellin A whale off Australia on the spring migration, feeding on krill by turning on its side and propellin
Carolina Spring Beauty Carolina Spring Beauty
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 ...
Horizontal, sagittal, and coronal functional MRIs show areas of increased activity in the primary ... Horizontal, sagittal, and coronal functional MRIs show areas of increased activity in the primary ...
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 ...
Easter spring Easter spring
Video: Leukemia

For a complete list of videos, visit our video library