[Answered] Sound vibrations with frequencies less than 20 Hz are called A) infrasonics. B) ultrasonics. C) ...

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Author Question: Sound vibrations with frequencies less than 20 Hz are called A) infrasonics. B) ultrasonics. C) ... (Read 44 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

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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

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Author Question: Sound vibrations with frequencies less than 20 Hz are called A) infrasonics. B) ultrasonics. C) ... (Read 44 times)

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