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

Author Question: Daisy raises 10.Kg to a height of 2.5 meters in 2.0 seconds. (a) How much work did she do? (b) ... (Read 199 times)

pane00

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
Daisy raises 10.Kg to a height of 2.5 meters in 2.0 seconds.
 
  (a) How much work did she do?
  (b) How much power was expended?
  (c) If she raises it in 1.0 s rather than 2.0 s, how do the work and power change?

Question 2

The change of the internal energy of an ideal gas depends upon
 
  A) changing temperature.
  B) changing pressure.
  C) changing volume.
  D) changing pressure and volume together.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ecabral0

  • Sr. Member
  • ****
  • Posts: 310
Reply #1 on: Jul 27, 2018
Answer to Question 1

(a) 0.25 kJ
(b) 0.12 kW
(c) same work but power doubles

Answer to Question 2

A


pane00

  • Hero Member
  • *****
  • Posts: 579
Reply #2 on: Jul 27, 2018
Thanks


ecabral0

  • Sr. Member
  • ****
  • Posts: 310
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Everyone has one nostril that is larger than the other.

Which do you think is most at work in a debate contest, mastery- or performance-goal orientations or ... Which do you think is most at work in a debate contest, mastery- or performance-goal orientations or ...
The physician and medical assistant will often work together to choose appropriate educational ... The physician and medical assistant will often work together to choose appropriate educational ...
This pediatric growth chart tracks the height and weight for girls ages 2–20. This pediatric growth chart tracks the height and weight for girls ages 2–20.
As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ... As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ...
Remove all jewelry before performing service work on any vehicle. Remove all jewelry before performing service work on any vehicle.
Multitasking at work Multitasking at work
Video: Structure of a Ribosome

For a complete list of videos, visit our video library