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 58 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
Wow, this really help

hramirez205

  • Member
  • Posts: 345
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

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.

A biofilm composed of a community of microorganisms glued by mucilage to a surface. A biofilm composed of a community of microorganisms glued by mucilage to a surface.
The Sun as it appears from the surface of the Earth at sunrise. The Sun as it appears from the surface of the Earth at sunrise.
Surface Features on Europa Surface Features on Europa
Red rocks due to oxidation of iron near the surface Red rocks due to oxidation of iron near the surface
John Tackett in spring of 2003 at age 15 John Tackett in spring of 2003 at age 15
A sled having a certain initial speed on a horizontal surface comes to rest after traveling 10 ... A sled having a certain initial speed on a horizontal surface comes to rest after traveling 10 ...
Video: Gastrin (protein digestion)

For a complete list of videos, visit our video library