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masya89 [10]
3 years ago
11

How do you calculate Friction force without the coefficient of friction

Physics
1 answer:
nadezda [96]3 years ago
3 0
Https://youtu.be/F_DEsMO_Wq8

hope this helped : )

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Until a train is a safe distance from the station it must travel at 5 m/s. Once the train is on open track it can speed up
kirza4 [7]

Answer:

I believe the answer is b

Explanation:

5 0
3 years ago
As temperature increases, what happens to the density of ocean water? A. changes unpredictably B. decreases C. does not change D
Lelu [443]
As the temperature of water increases, the density of water will decrease.
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3 years ago
determine the loudness (in decibels) of the sound at a rock concert if the intensity of the sound is 1 x 10–1 w/m2. remember, th
EleoNora [17]

The loudness of the sound at the rock concert, where the intensity of the sound is1 x 10⁻¹ Wm⁻² is  110 dB.

Here we are dealing with loudness which is the perception of the Intensity of the sound.

The formula  to refer to in order  to  find the value of the loudness of a sound is ,

  db= 10log(I/I₀)

As we are provided with the current intensity which is  1 x 10⁻¹ Wm⁻². and the initial intensity which is  1 x 10⁻¹² Wm⁻².

So, by substituting the required values in the formula we get

db= 10 * log( 1 x 10⁻¹ /1 x 10⁻¹²)

 = 10 * 11 log(10)

 = 110

So, the result is 110 dB.

To know more about the intensity of sound refer to the link brainly.com/question/9323731?referrer=searchResults.

To know more about questions related to loudness refer to the link brainly.com/question/21094511?referrer=searchResults.

#SPJ4

4 0
1 year ago
How many degrees are there between the direction of motion and the force of
Aleks04 [339]

Answer:

180°

Explanation:

Friction, if it exists, ALWAYS opposes motion or attempted motion.

5 0
3 years ago
Read 2 more answers
Two forces are acting on an object, but the net force on the object is O N. For the net
Alenkinab [10]

Answer:

  A.  The forces are the same size and in opposite directions.

Explanation:

Just as an opposite number will cancel a number: -1 +1 = 0, so an opposite force will cancel a force, with the result that the net is zero.

6 0
3 years ago
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