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Harman [31]
2 years ago
14

How many balls are there in a ski ball machine?

Physics
1 answer:
gtnhenbr [62]2 years ago
8 0

Answer:

i think 2 per each sac

Explanation:

i dont know for sure...

Hope this helps

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The Pangaea theory supports the theory of plate tectonics because _____.
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It is based on the idea that all the present continents were on supercontinent.
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Consider two diffraction gratings. One grating has 3000 lines per cm, and the other one has 6000 lines per cm. Both gratings are
Usimov [2.4K]

Answer:

<em>The 6000 lines per cm grating, will produces the greater dispersion .</em>

Explanation:

A diffraction grating is an optical component with a periodic (usually one  that has ridges or rulings on their surface rather than dark lines) structure that splits and diffracts light into several beams travelling in different directions.

The directions of the light beam produced from a diffraction grating depend on the spacing of the grating, and also on the wavelength of the light.

For a plane diffraction grating, the angular positions of principle maxima is given by

(a + b) sin ∅n = nλ

where

a+b is the distance between two consecutive slits

n is the order of principal maxima

λ is the wavelength of the light

From the equation, we can see that without sin ∅ exceeding 1, increasing the number of lines per cm will lead to a decrease between the spacing between consecutive slits.

In this case, light of the same wavelength is used. If λ and n is held constant, then we'll see that reducing the distance between two consecutive slits (a + b) will lead to an increase in the angle of dispersion sin ∅. So long as the limit of sin ∅ not greater that one is maintained.

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3 years ago
Do sponges have of appendages jointed, not Jointed, or absent
anygoal [31]
Sponges have appendages jointed 
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A tennis ball is thrown against a vertical concrete wall that is fixed to the ground. The ball bounces off the wall. How does th
cestrela7 [59]

Answer:

Explanation:

The forces compare together as a result of the fact that the force exerted by that of the ball and the force exerted by that of the wall both have the same magnitude.

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3 years ago
Two soccer players kick the same 2-kg ball at the same time in opposite directions one kicks with a force of 15 n the other kick
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Because the direction of the kicks are opposite, the net force between the applied forces is their difference.
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Substituting,
                        Fn = 15 N - 5 N
                        Fn = 10 N

From Newton's second law of motion,
                       Fn = m x a
where m is mass and a is acceleration. Manipulating the equation so that we are able to calculate for a,
                       a = Fn / m

Substituting,
                      a = (10 N) / 2 kg
                       a = 5 m/s²

<em>ANSWER: 5 m/s²</em>
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