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

Author Question: It requires 49 J of work to stretch an ideal very light spring from a length of 1.4 m to a length of ... (Read 110 times)

Hungry!

  • Hero Member
  • *****
  • Posts: 1,071
on: Jul 29, 2018
It requires 49 J of work to stretch an ideal very light spring from a length of 1.4 m to a length of 2.9 m. What is the value of the spring constant of this spring?
 
  A) 15 N/m
  B) 44 N/m
  C) 29 N/m
  D) 22 N/m

Question 2

A 1000.0 kg car is moving at If a truck has 18 times the kinetic energy of the car, how fast is the truck moving?
 
  A) 45 km/h
  B) 63 km/h
  C) 54 km/h
  D) 36 km/h


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

atrochim

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: A


Hungry!

  • Member
  • Posts: 1,071
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

flexer1n1

  • Member
  • Posts: 373
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

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.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

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

Light-mantled Albatrosses regularly dive to feed, and can dive to below 12 m. Light-mantled Albatrosses regularly dive to feed, and can dive to below 12 m.
Trig Example finding angles+length of sides Trig Example finding angles+length of sides
Alzheimer’s Drugs Work by Intensifying the Effect of Acetylcholine at the Receptor Alzheimer’s Drugs Work by Intensifying the Effect of Acetylcholine at the Receptor
Use the test light to check for voltage at terminal 30 of the relay. The ignition may have to be in ... Use the test light to check for voltage at terminal 30 of the relay. The ignition may have to be in ...
Using a bright light makes seeing where the smoke is coming from easier. In this case, smoke was ... Using a bright light makes seeing where the smoke is coming from easier. In this case, smoke was ...
Obese individual with stretch marks (striae) Obese individual with stretch marks (striae)
Video: Factors that increase metabolic rate and heat production

For a complete list of videos, visit our video library