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 243 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?

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

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Blocked at every turn by congressional Republicans who hated him, President Obama turned to techniqu Blocked at every turn by congressional Republicans who hated him, President Obama turned to techniqu
Table 6.1 illustrates the main regime types and their differences. It breaks the regimes into four Table 6.1 illustrates the main regime types and their differences. It breaks the regimes into four
The benefits of wind power The benefits of wind power
Per capita consumption of power is high in the developed world and highest in the United States Per capita consumption of power is high in the developed world and highest in the United States
ECG machine ECG machine
Physics: Power, Energy and Time Physics: Power, Energy and Time
Video: Neural regulation of blood pressure - baroreceptor and chemoreceptor reflexes

For a complete list of videos, visit our video library