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vodomira [7]
3 years ago
6

After an arrow is shot, is the force unbalanced or balanced? BRAINLY.

Physics
1 answer:
Reil [10]3 years ago
7 0

Answer:

The force is unbalanced

Explanation:

After an arrow is shot, the force acting on the arrow is unbalanced. The resulting net force gives the arrow an initial acceleration which wanes with time and the body is brought to rest.

The net force acting on an arrow is not zero and this indicates that the forces acting on the arrow is unbalanced.

If the force is balanced, the arrow is expect to continue in uniform motion but that is not the case as air resistance has massive impact on this body.

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3 years ago
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Consider a completely elastic head-on collision between two particles that have the same mass and the same speed. What are the v
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8 0
4 years ago
A certain siren radiates sound uniformly in all directions. At a distance of 17 m from the siren, the intensity level is 49 db.
AveGali [126]

Answer:

The power is  P =  2.88*10^{-4 } \ W

Explanation:

From the question we are told that

   The distance from the siren  is  d =  17 \ m

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   The threshold of hearing is   I_0 = 1.0 *10^{-12} \ W/m^2

Generally the intensity level is mathematically represented as

      \beta  =  10dB * log [\frac{I}{I_o} ]

Where I is the intensity at which the siren radiates the sound

substituting values  

       49  =  10 * log [\frac{I}{1.0 *10^{-12}} ]

=>    I  =  7.94*10^{-8} W/m^2

Now the amount of power the siren put out is mathematically evaluated as

      P= IA

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So  

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substituting values

    P =  7.94 *10^{-8}  * 4  * 3.142 * (17)^2

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3 0
3 years ago
Which of the following terms best describes air
g100num [7]
I think that it is a mixture because air can contain anything.
5 0
4 years ago
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