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

Author Question: If you put 100 watts of power into a machine that produces 75 watts of power, the efficiency of the ... (Read 197 times)

oliviahorn72

  • Hero Member
  • *****
  • Posts: 579
on: Jul 21, 2018
If you put 100 watts of power into a machine that produces 75 watts of power, the efficiency of the machine is ____ percent.
 
 

a. 25 c. 75
  b. 50 d. 125



Question 2

Which item performs work using a wheel and pulley system?
 
 

a. elevator c. train
  b. ramp d. inclined plane



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

fauacakatahaias

  • Sr. Member
  • ****
  • Posts: 353
Reply #1 on: Jul 21, 2018
Answer to Question 1

C

Answer to Question 2

A


oliviahorn72

  • Member
  • Posts: 579
Reply 2 on: Jul 21, 2018
Thanks for the timely response, appreciate it

at

  • Member
  • Posts: 359
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Sweat machine Sweat machine
a) Standard PCR machine used for genotyping and (b) agarose gel to detect DNA fragments. a) Standard PCR machine used for genotyping and (b) agarose gel to detect DNA fragments.
The relative penetrating power of alpha, beta, and gamma radiation. Gamma and neutron radiation are ... The relative penetrating power of alpha, beta, and gamma radiation. Gamma and neutron radiation are ...
The Fukushima Daiichi power plant The Fukushima Daiichi power plant
Find the derivative using the power rule Q2 Find the derivative using the power rule Q2
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?
Video: Digestive System Animation

For a complete list of videos, visit our video library