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Kay [80]
2 years ago
10

How does Borg’s Rating of Perceived Exertion relate to Target Heart Rate?

Physics
1 answer:
Nina [5.8K]2 years ago
7 0

Answer:

it helps you estimate how hard you're working (your activity intensity). <u>perceived exertion</u> is how hard you think your body is exercising. ratings on the scale are related to heart rate (how hard your heart is working to move blood through your body).

Explanation:

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How are the electric field lines around a positive charge affected when a second positive charge is near it?
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Answer: The field lines bend away from the second positive charge

Explanation: opposite attracts, same repulse

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3 years ago
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Specialized intermodal tank container which carries refrigerated liquid gases, oxygen, or helium
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This would be a cryogenic intermodal tank. These are used to store and transport HAZMAT gases that require storage under specific pressure and temperature parameters. Cryogenic Intermodal tanks have pressure of 25 Psi or less. 
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When is an object moving in uniform circular motion?
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Answer: An object undergoing uniform circular motion is moving

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3 years ago
What's the equivalent resistance to the resistances shown?<br><br>A) 5<br>B) 6<br>C) 2<br>D) 3
PIT_PIT [208]
From A to B its 5 ohm.
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6 0
3 years ago
A flute is designed so that it plays a frequency of 261.6 Hz, middle C, when all the holes are covered and the temperature is 20
irinina [24]

Answer:

0.655 m

13.468°C

Explanation:

v = Speed of sound at 20.0°C = 343 m/s (general value)

For one both end open we have the expression

L=\dfrac{\lambda_1}{2}\\\Rightarrow L=\dfrac{\dfrac{v}{f_1}}{2}\\\Rightarrow L=\dfrac{\dfrac{343}{261.6}}{2}\\\Rightarrow L=0.655581039755\ m

The length of the flute is 0.655 m

Beat frequency is given by

\Delta f=f_1-f_2\\\Rightarrow 3=261.6-f_2\\\Rightarrow f_2=261.6-3\\\Rightarrow f_2=258.6\ Hz

Velocity of the wave is

v=f_2\lambda_1\\\Rightarrow v=258.6\times \dfrac{343}{261.6}\\\Rightarrow v=339.066513761\ m/s

The temperature is given by

T=273(\dfrac{v}{331})^2\\\Rightarrow T=273(\dfrac{339.066513761}{331})^2\\\Rightarrow T=286.468227799\ K=286.468227799-273=13.468227799^{\circ}C

The temperature of the room is 13.468°C

4 0
3 years ago
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