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 187 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?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Pacific hagfish at 150 meters depth, California, Cordell Bank National Marine Sanctuary. Pacific hagfish at 150 meters depth, California, Cordell Bank National Marine Sanctuary.
Alzheimer’s Drugs Work by Intensifying the Effect of Acetylcholine at the Receptor Alzheimer’s Drugs Work by Intensifying the Effect of Acetylcholine at the Receptor
Remove all jewelry before performing service work on any vehicle. Remove all jewelry before performing service work on any vehicle.
The relationship between the height of the firing line and length of the spark line can be ... The relationship between the height of the firing line and length of the spark line can be ...
Breast-Feeding at Work Can Work Breast-Feeding at Work Can Work
A system absorbs 623 J of heat while doing 457 J of work. What is the value of U? A system absorbs 623 J of heat while doing 457 J of work. What is the value of U?
Video: Wound Care

For a complete list of videos, visit our video library