« 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 43 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?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

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

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

The Parallax of a Nearby Object in Space The Parallax of a Nearby Object in Space
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
drag force drag force
Determined the magnitude of the magnetic force on the conductor. Determined the magnitude of the magnetic force on the conductor.
finding the resultant force finding the resultant force
The coefficient of the restitution of an object is defined as the ratio of its outgoing to ... The coefficient of the restitution of an object is defined as the ratio of its outgoing to ...
Video: Neuron Type Animation

For a complete list of videos, visit our video library