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

Author Question: Which of the following is a prime number? A) 13 B) 21 C) 49 D) ... (Read 38 times)

CQXA

  • Hero Member
  • *****
  • Posts: 546
Which of the following is a prime number?
 
  A) 13
  B) 21
  C) 49
  D) 15

Question 2

Two violin strings, vibrating at 880. Hz and 876. Hz respectively, will cause a beat frequency of
 
  A) 4. Hz.
  B) 8. Hz.
  C) 16. Hz.
  D) 878. Hz.
  E) 1.76 kHz.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

amcvicar

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

A

Answer to Question 2

A



CQXA

  • Hero Member
  • *****
  • Posts: 546

amcvicar

  • Sr. Member
  • ****
  • Posts: 341
Always glad to help...



 

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

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.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

For a complete list of videos, visit our video library