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

Author Question: In an AC circuit, the ratio of average current to maximum current is: a. zero. c. 1.0. b. 0.707. ... (Read 61 times)

sabina

  • Hero Member
  • *****
  • Posts: 563
on: Jul 28, 2018
In an AC circuit, the ratio of average current to maximum current is:
 a. zero.
  c. 1.0.
  b. 0.707.
  d. 0.5.

Question 2

A chamber that can be filled with different gases has placed in it a source of sound that in air produces a frequency of 200 Hz and a microphone to pick up the sound for frequency analysis. First the chamber is filled with helium (speed of sound 1000 m/s at room conditions), then the helium is replaced with oxygen (speed of sound 330 m/s at room conditions), and then finally the helium is replaced with carbon dioxide (speed of sound 269 m/s at room conditions). In which gas is the highest frequency of sound found by the microphone during this experiment?
 a. helium
  b. oxygen
  c. carbon dioxide
  d. They all have the same frequency of sound.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jxjsniuniu

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

D


sabina

  • Member
  • Posts: 563
Reply 2 on: Jul 28, 2018
Excellent

tkempin

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Independent assortment of chromosomes at meiosis explains Mendel’s ratio Independent assortment of chromosomes at meiosis explains Mendel’s ratio
Heliospheric-current-sheet Heliospheric-current-sheet
Voltmeter hook-ups for voltage-drop testing of a GM-type cranking circuit. Voltmeter hook-ups for voltage-drop testing of a GM-type cranking circuit.
The tools needed to diagnose a circuit containing a relay include a digital multimeter (DMM), a ... The tools needed to diagnose a circuit containing a relay include a digital multimeter (DMM), a ...
How to find the maximum and minimum of a quadratic relation How to find the maximum and minimum of a quadratic relation
International Normalized Ratio Guidelines for Dental Treatment International Normalized Ratio Guidelines for Dental Treatment
Video: Ionic bonds - role of ions in the body

For a complete list of videos, visit our video library