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 100 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?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Spring-activated lancet. Spring-activated lancet.
The tension of the spring in the fuel-pressure regulator determines the operating pressure on a ... The tension of the spring in the fuel-pressure regulator determines the operating pressure on a ...
Vertical and Horizontal Changes in Pressure Vertical and Horizontal Changes in Pressure
Meat rolls البورك Meat rolls البورك
A 1000-kg car is slowly picking up speed as it goes around a horizontal unbanked curve whose ... A 1000-kg car is slowly picking up speed as it goes around a horizontal unbanked curve whose ...
A wheel of diameter 0.70 m rolls on the floor without slipping. A point at the top of the wheel ... A wheel of diameter 0.70 m rolls on the floor without slipping. A point at the top of the wheel ...
Video: Introduction to Diabetes

For a complete list of videos, visit our video library