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4 years ago

What are the dates of the atlantic hurricane season

Physics

2 answers:

Bad White [126]4 years ago

6 0

Answer:

Starts on Saturday, June 1

and ends on

Saturday, November 30

Explanation:

mrs_skeptik [129]4 years ago

3 0

For 2019 it starts on june 1 and ends november 30

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4 years ago

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Find the poing of center of gravity plz show the steps...

olasank [31]

Answer:

Explanation:

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3 years ago

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3 years ago

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What is the frequency of a wave if 10 waves go past in 1 second ?

KIM [24]

Answer:

f = 10 Hz

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3 years ago

Bats use sound to sense objects by sending out short ultrasound pulses and listening for the echo off the object. A. Sketch the

ivann1987 [24]

Answer:

B. t = 0.250s

Explanation:

A. An image with the sketch of the bat emitting a sound, which reflects on a surface and return to the bat is attached below.

B. In order to calculate the time that the pulse emitted by the bat, return to the bat, you first calculate the time that pulse takes to arrive to the object.

You use the following formula:

$x=vt$ (1)

x: distance to the object = 43m

t: time = ?

v: speed of sound beat = 343 m/s

You solve the equation (1) for t:

$t=\frac{x}{v}=\frac{43m}{343m/s}=0.125s$

The time on which the bat hears the echo is twice the value of t, that is:

$t'=2(0.125s)=0.250s$

The time on which bat heart the echo of its sound, from the moment on which bat emitted it, is 0.250s

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3 years ago