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 101 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
Thanks for the timely response, appreciate it

atrochim

  • Member
  • Posts: 331
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Lycopodium obscurum growing on the forest floor. Lycopodium obscurum growing on the forest floor.
Determining the order and rate constant of an irreversible first-order reaction Determining the order and rate constant of an irreversible first-order reaction
A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable ... A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable ...
For a particular process that is carried out at constant pressure, q = 145 kJ and w = -35 kJ. ... For a particular process that is carried out at constant pressure, q = 145 kJ and w = -35 kJ. ...
The decay constant of radon-222 is 0.181 d-1. If a sample of radon initially contains 6.00 × ... The decay constant of radon-222 is 0.181 d-1. If a sample of radon initially contains 6.00 × ...
The charge for telephone calls T is partly constant and partly varies with the number N of ... The charge for telephone calls T is partly constant and partly varies with the number N of ...
Video: Arthroscopy

For a complete list of videos, visit our video library