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 109 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
:D TYSM

AISCAMPING

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

The Speed of Light Is Constant The Speed of Light Is Constant
Three toddlers sit on the floor playing with a toy. Three toddlers sit on the floor playing with a toy.
Mechanisms That Lift Air Mechanisms That Lift Air
Wag the arm to mobilize the joints of the upper extremities. Grasp the hand and lift the arm off the ... Wag the arm to mobilize the joints of the upper extremities. Grasp the hand and lift the arm off the ...
A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ... A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ...
A sled having a certain initial speed on a horizontal surface comes to rest after traveling 10 ... A sled having a certain initial speed on a horizontal surface comes to rest after traveling 10 ...
Video: Cerebral Cortex Animation

For a complete list of videos, visit our video library