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LekaFEV [45]
3 years ago
9

Which factor is not a type of spectra?

Physics
1 answer:
rusak2 [61]3 years ago
4 0
The correct answer is
D.) discontinuous

Brainliest?
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A horizontal clothesline is tied between 2 poles, 12 meters apart. When a mass of 1 kilograms is tied to the middle of the cloth
nadya68 [22]

Answer:

The  tension on the clotheslines is  T  = 8.83 \ N

Explanation:

The  diagram illustrating this  question is  shown on the first uploaded image

From the question we are told that  

    The distance between the two poles is  d =  12 \ m

     The mass tie to the middle of the clotheslines m  =  1 \ kg

     The length at which the clotheslines sags is  l  = 4 \ m

Generally the weight due to gravity at the middle of the  clotheslines is mathematically represented as

          W =  mg

let the angle which the tension on the  clotheslines makes with the horizontal be  \theta which mathematically evaluated using the SOHCAHTOA as follows

        Tan  \theta =  \frac{ 4}{6}

=>     \theta =  tan^{-1}[\frac{4}{6} ]

=>     \theta  =  33.70^o

   So the vertical component of this  tension is  mathematically represented a  

      T_y  = 2*  Tsin \theta

Now at equilibrium the  net horizontal force is  zero which implies that

          T_y  -  mg  = 0

=>       T sin \theta  -  mg  =  0

substituting values

          T  =   \frac{m*g}{sin (\theta )}

substituting values

           T  =   \frac{1 *9.8}{2 * sin (33.70 )}

           T  = 8.83 \ N

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Let us first know the given: Tennis ball has a mass of 0.003 kg, Soccer ball has a mass of 0.43 kg. Having the same velocity at 16 m/s. First the equation for momentum is P=MV P=Momentum M=Mass V=Velocity. Now let us have the solution for the momentum of tennis ball. Pt=0.003 x 16 m/s= (    kg-m/s ) I use the subscript "t" for tennis.  Momentum of Soccer ball Ps= 0.43 x 13m/s = (      km-m/s). If we going to compare the momentum of both balls, the heavier object will surely have a greater momentum because it has a larger mass, unless otherwise  the tennis ball with a lesser mass will have a greater velocity to be equal or greater than the momentum of a soccer ball.
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Answer:

A

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physical model is something that you are able to hold, for example a rock.

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