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nika2105 [10]
4 years ago
14

Modern Soccer can be traced back to 1863, when football (futbol) and rugby split ways and futbol (soccer) rule would no longer a

llow players to use their hands (except the goalie)
Physics
1 answer:
alexandr402 [8]4 years ago
3 0

<u>Answer:</u>

<u>True</u>

Explanation:

It is agreed that the laws of Modern Soccer can be traced back to 1863 when new rules stated that players would no longer use their hands in football (futbol) except the goalie (its another term for the goalkeeper).

These rules were created by The Football Association (FA), the governing body of association football in the areas around England, and was formed in 1863.

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3 years ago
Two satellites A and B orbit the Earth in the same plane. Their masses are 5 m and 7 m, respectively, and their radii 4 r and 7
Dmitry [639]

Answer:

The ratio of their orbital speeds are 5:4.

Explanation:

Given that,

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Radius of A = 4 r

Radius of B = 7 r

The orbital speed of satellite A,

v_{A}=\sqrt{\dfrac{GM_{A}}{R_{A}}}......(I)

The orbital speed of satellite B,

v_{B}=\sqrt{\dfrac{GM_{B}}{R_{B}}}......(I)

We need to calculate the ratio of their orbital speeds

Using equation (I) and (II)

\dfrac{v_{A}}{v_{B}}=\sqrt{\dfrac{\dfrac{GM_{A}}{R_{A}}}{\dfrac{GM_{B}}{R_{B}}}}

Put the value into the formula

\dfrac{v_{A}}{v_{B}}=\sqrt{\dfrac{G\times5m\times7r}{G\times7m\times4r}}

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Hence, The ratio of their orbital speeds are 5:4.

8 0
3 years ago
A book is thrown downward from the library window with a speed of 2.0\,\dfrac{\text m}{\text s}2.0 s m ​ 2, point, 0, start frac
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Explanation:

Final speed v(t) is given as

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Given

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From equation 1 above

v = 2.0m/s + 10(0.82)m/s

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