This topic contains a solution. Click here to go to the answer

Author Question: If you do work on an object in half the time, your power output is A) half. B) the same. C) ... (Read 84 times)

theo

  • Hero Member
  • *****
  • Posts: 698
If you do work on an object in half the time, your power output is
 
  A) half.
  B) the same.
  C) twice.

Question 2

Suppose you electrically charge a comb by running it through your hair. If you then shake this comb back and forth one time every second, you will create
 
  A) an electromagnetic wave having a frequency of 1 Hz and a speed of 300,000 km/s.
  B) a sound wave having a frequency of 1 Hz and a speed of 300,000 km/s.
  C) an electromagnetic field that vibrates at a frequency of 1 Hz, but no electromagnetic wave is created.
  D) the tooth fairy.
  E) a sound wave having a wavelength of 300,000 km and a speed of 300,000 km/s.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

rleezy04

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

Thank you for answering this question.

Answer to Question 2

A





 

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

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

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

For a complete list of videos, visit our video library