Author Question: A pair of pliers is a good example of a _________Lever. A. First Class B. Second Class C. ... (Read 398 times)

laurencescou

  • Hero Member
  • *****
  • Posts: 593
A pair of pliers is a good example of a _________Lever.
 
  A. First Class
  B. Second Class
  C. Third Class
  D. None of the above

Question 2

A man picks up a 50 pound box three feet above the grounD. How much work is being done?
 
  A. 16.7 ft-lb
  B. 0 ft-lb
  C. +50 ft-lb
  D. +150 ft-lb



yuyiding

  • Sr. Member
  • ****
  • Posts: 357
Answer to Question 1

A

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

For a complete list of videos, visit our video library