Author Question: A low-power source of energy could put out a lot of work provided it A) exerted its power over a ... (Read 109 times)

cool

  • Hero Member
  • *****
  • Posts: 570
A low-power source of energy could put out a lot of work provided it
 
  A) exerted its power over a very large distance.
  B) operated for a short time.
  C) operated for a long time.
  D) exerted a sufficiently strong force.
  E) Nonsense-- there is no way that a low-power source can put out a large amount of work.

Question 2

It takes 87 J of work to stretch an ideal spring from 1.4 m to 2.9 m from equilibrium. What is the value of the spring constant (force constant) of this spring?
 
  A) 52 N/m B) 77 N/m C) 39 N/m D) 27 N/m


asdfasdf

  • Sr. Member
  • ****
  • Posts: 339
Answer to Question 1

C

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

For a complete list of videos, visit our video library