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

Author Question: A machine puts out 100 watts of power for every 1000 watts put into it. The efficiency of the ... (Read 247 times)

maychende

  • Hero Member
  • *****
  • Posts: 556
on: Jul 29, 2018
A machine puts out 100 watts of power for every 1000 watts put into it. The efficiency of the machine is
 
  A) 10.
  B) 50.
  C) 90.
  D) 110.
  E) none of the above

Question 2

A hydraulic press, like an inclined plane, is capable of increasing energy.
 
  A) sometimes true
  B) always false
  C) always true
  D) sometimes false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

chjcharjto14

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B


maychende

  • Hero Member
  • *****
  • Posts: 556
Reply #2 on: Jul 29, 2018
Thank you!


chjcharjto14

  • Sr. Member
  • ****
  • Posts: 342
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Acid Rain and Power Plant Emissions Acid Rain and Power Plant Emissions
Are these the correct answers for finding the derivative using the power rule? Are these the correct answers for finding the derivative using the power rule?
ECG machine ECG machine
ECG machine ECG machine
Charlie Stone wants to retire in 30 years, and he wants to have an annuity of $1000 a year for ... Charlie Stone wants to retire in 30 years, and he wants to have an annuity of $1000 a year for ...
During a period of high power demand, the voltage output of the power company is reduced by ... During a period of high power demand, the voltage output of the power company is reduced by ...
Video: Structures that affect circulation - kidneys, blood volume and venous tone

For a complete list of videos, visit our video library