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

Author Question: Sound vibrations with frequencies less than 20 Hz are called A) infrasonics. B) ultrasonics. C) ... (Read 18 times)

jman1234

  • Hero Member
  • *****
  • Posts: 560
on: Jul 29, 2018
Sound vibrations with frequencies less than 20 Hz are called
 
  A) infrasonics.
  B) ultrasonics.
  C) supersonics.
  D) infrared.
  E) megasonics.

Question 2

An object is thrown upwards with a speed of 16 m/s. How long does it take it to reach a height of 7.0 m on the way up?
 
  A) 0.52 s
  B) 1.2 s
  C) 2.4 s
  D) 3.1 s
  E) 4.2 s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

brittrenee

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

A


jman1234

  • Hero Member
  • *****
  • Posts: 560
Reply #2 on: Jul 29, 2018
Thanks


brittrenee

  • Sr. Member
  • ****
  • Posts: 321
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

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.

Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th
Persian leopard (Panthera pardus ciscaucasica), also called Caucasian leopard Persian leopard (Panthera pardus ciscaucasica), also called Caucasian leopard
The pancreas. This organ sits just below the stomach and is both an exocrine and an endocrine gland. The pancreas. This organ sits just below the stomach and is both an exocrine and an endocrine gland.
Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp
People whose behaviors violate norms are often called mentally ill. “Why else would they do such ... People whose behaviors violate norms are often called mentally ill. “Why else would they do such ...
Different forms of a gene are called alleles Different forms of a gene are called alleles
Video: Fertilization and Development

For a complete list of videos, visit our video library