This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Suppose you slowly, and at constant speed, lift a book weighing 12 N from the floor to a shelf 2 m ... (Read 68 times)

neverstopbelieb

  • Hero Member
  • *****
  • Posts: 534
on: Jul 29, 2018
Suppose you slowly, and at constant speed, lift a book weighing 12 N from the floor to a shelf 2 m above the floor. Neglect air resistance. The work done by you on the book is
 
  A) 24 watts. B) 6 joules. C) 6 watts. D) 24 joules. E) zero.

Question 2

Strictly speaking, when you step off a curb you are momentarily
 
  A) in orbit.
  B) weightless.
  C) in space.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

angrybirds13579

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

Answer: B


neverstopbelieb

  • Member
  • Posts: 534
Reply 2 on: Jul 29, 2018
Excellent

AmberC1996

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Here's how comic book heroes are made Here's how comic book heroes are made
Andrea Palladio, Plan of main floor (piano nobile), Villa La Rotunda. Andrea Palladio, Plan of main floor (piano nobile), Villa La Rotunda.
Mechanisms That Lift Air Mechanisms That Lift Air
Using both hands, gently but firmly grasp the skin over a spot on the upper back, and lift the skin ... Using both hands, gently but firmly grasp the skin over a spot on the upper back, and lift the skin ...
Let f be a real function with domain R. Suppose that for each ǫ > 0, there is a continuous ... Let f be a real function with domain R. Suppose that for each ǫ > 0, there is a continuous ...
Suppose that we have a sample space with five equally likely experimental outcomes: E1, E2, E3, ... Suppose that we have a sample space with five equally likely experimental outcomes: E1, E2, E3, ...
Video: Energy sources - types

For a complete list of videos, visit our video library