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 64 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 documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

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

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

The directionality of a polypeptide compared to an mRNA The directionality of a polypeptide compared to an mRNA
Species-rich floras of chalk grassland compared to species-poor floras of acid soils. Species-rich floras of chalk grassland compared to species-poor floras of acid soils.
Hydronephrosis. Normal kidney (left) and kidney with hydronephrosis (right) are compared. Note the d Hydronephrosis. Normal kidney (left) and kidney with hydronephrosis (right) are compared. Note the d
The population of algae is compared to the population of corals in a given sampling area The population of algae is compared to the population of corals in a given sampling area
A Snow Goose in flight. A Snow Goose in flight.
DNA and RNA compared DNA and RNA compared
Video: Proteins

For a complete list of videos, visit our video library