« previous next »

Author Question: A 2.0-kg object is lifted vertically through 3.00 m by a 150-N force. How much work is done on the ... (Read 44 times)

jparksx

  • Hero Member
  • *****
  • Posts: 570
on: Jul 29, 2018
A 2.0-kg object is lifted vertically through 3.00 m by a 150-N force. How much work is done on the object by gravity during this process?
 
  What will be an ideal response?

Question 2

Elizabeth lifts a 10 N book from the floor to the table, a height of 2 m. How much work does Elizabeth do?
 
  A) 20 watts
  B) 5 joules
  C) 20 joules
  D) Elizabeth does zero work
  E) 5 watts


Perkypinki

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 29, 2018
Answer to Question 1

-59 J

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Lilly Martin Spencer’s Young Husband: First Marketing (1854). Note that passers-by are amused at thi Lilly Martin Spencer’s Young Husband: First Marketing (1854). Note that passers-by are amused at thi
Which do you think is most at work in a debate contest, mastery- or performance-goal orientations or ... Which do you think is most at work in a debate contest, mastery- or performance-goal orientations or ...
A basic principle of symbolic interactionism is that meaning is not inherent in an object or event, ... A basic principle of symbolic interactionism is that meaning is not inherent in an object or event, ...
Value of Work versus GDP per Capita Value of Work versus GDP per Capita
1) (a) What is Coulomb?s Law? (b) Find the net electrostatic force on the charge labeled ?P? in ... 1) (a) What is Coulomb?s Law? (b) Find the net electrostatic force on the charge labeled ?P? in ...
Question about Resultant of gravitational force? Question about Resultant of gravitational force?
Video: Factors that increase metabolic rate and heat production

For a complete list of videos, visit our video library