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

Author Question: A Hooke's law spring is mounted horizontally over a frictionless surface. The spring is then ... (Read 62 times)

Kikoku

  • Hero Member
  • *****
  • Posts: 540
on: Jul 28, 2018
A Hooke's law spring is mounted horizontally over a frictionless surface. The spring is then compressed a distance d and is used to launch a mass m along the frictionless surface. What compression of the spring would result in the mass attaining double the speed received in the above situation?
 a. 1.41d
  c. 2.00d
  b. 1.73d
  d. 4.00d

Question 2

Of the following heat engines, which has the highest efficiency?
 a. Hero's engine
  c. a car's gasoline engine
  b. a Carnot engine
  d. a truck's diesel engine


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

momolu

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

B


Kikoku

  • Member
  • Posts: 540
Reply 2 on: Jul 28, 2018
:D TYSM

Bigfoot1984

  • Member
  • Posts: 321
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

A bull elk in spring, shedding its winter coat and with its antlers covered in velvet A bull elk in spring, shedding its winter coat and with its antlers covered in velvet
Rule of Nines. A method for determining percentage of body burned. Each different colored section re Rule of Nines. A method for determining percentage of body burned. Each different colored section re
Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut
Guo Xi, Early Spring. Guo Xi, Early Spring.
IgM only, then IgD and IgM on the surface of a B cell. IgM only, then IgD and IgM on the surface of a B cell.
Video: Gas exchange - driving force

For a complete list of videos, visit our video library