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 36 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?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Some male birds and mammals congregate in communal courting grounds called leks. Some male birds and mammals congregate in communal courting grounds called leks.
Cataract extraction. The procedure involves a surgical removal of a cataract lens and its replacemen Cataract extraction. The procedure involves a surgical removal of a cataract lens and its replacemen
Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers
The illusory bands visible in this figure are often called Mach bands, although Mach used a ... The illusory bands visible in this figure are often called Mach bands, although Mach used a ...
The myeloma cells do not grow in a selective media called HAT because they cannot synthesize DNA ... The myeloma cells do not grow in a selective media called HAT because they cannot synthesize DNA ...
The synapse and synaptic transmission. (a) A thin cleft, called the synapse, separates one cell from The synapse and synaptic transmission. (a) A thin cleft, called the synapse, separates one cell from
Video: Bacteriophage (Virus) - Mice Experiment

For a complete list of videos, visit our video library