« 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 36 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?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Muscle length versus isometric force Muscle length versus isometric force
Work Settings for People Earning Master’s and Bachelor’s Degrees in Psychology Work Settings for People Earning Master’s and Bachelor’s Degrees in Psychology
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 ...
Typical Work Settings for Massage Therapists Typical Work Settings for Massage Therapists
Reserves can work for both fish and fishers Reserves can work for both fish and fishers
finding resultant for the following force combinations finding resultant for the following force combinations
Video: Component of feedback systems & Communication and regulation of body systems

For a complete list of videos, visit our video library