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

Author Question: You run up a flight of stairs, and then you walk up a second, identical, flight of stairs. Compared ... (Read 63 times)

sheilaspns

  • Hero Member
  • *****
  • Posts: 567
on: Jul 29, 2018
You run up a flight of stairs, and then you walk up a second, identical, flight of stairs. Compared with running up the first flight of stairs, in walking up the second flight your
 
  A) power output is greater.
  B) work output is smaller.
  C) work output is greater.
  D) power output is smaller.
  E) None of the above.

Question 2

An ideal spring with a spring constant (force constant) of 22N/m is stretched from equilibrium to 2.9 m. How much work is done in the process?
 
  A) 186 J B) 47 J C) 121 J D) 93 J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dyrone

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

D


sheilaspns

  • Hero Member
  • *****
  • Posts: 567
Reply #2 on: Jul 29, 2018
Thank you!


dyrone

  • Sr. Member
  • ****
  • Posts: 322
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Acromegaly in one individual from a pair of identical twins. Acromegaly in one individual from a pair of identical twins.
C4 and CAM photosynthesis compared C4 and CAM photosynthesis compared
Compared to a chimpanzee, the human newborn has relatively little room to spare as it passes through Compared to a chimpanzee, the human newborn has relatively little room to spare as it passes through
In a project on job discrimination, Pager prepared identical résumés for the teams, but with one ... In a project on job discrimination, Pager prepared identical résumés for the teams, but with one ...
identical (left) and fraternal (right) twins identical (left) and fraternal (right) twins
Use of Flight Muscles Use of Flight Muscles
Video: Structure of a Ribosome

For a complete list of videos, visit our video library