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Marat540 [252]
3 years ago
7

The chemical formula for sodium fluoride is A) Na7F B) NaF C) NaF2 D) NaF7

Physics
2 answers:
ikadub [295]3 years ago
8 0
The correct answer would be the letter B.) NaF this attracts opposite charges. The final formula of sodium fluoride would be NaF it’s <span>compound is formed by the complete transfer of electrons from a metal to a nonmetal.</span>
Molodets [167]3 years ago
5 0
B.) naf  is the answer for you buddy

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guajiro [1.7K]

Answer:

T = 190 N

Explanation:

When child is sitting on the swing then the weight of the child is vertically downwards

So it is

F_g = 160 N

now a force of 100 N is acting on the swing in horizontal direction

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now the net force is resultant force due to gravity and horizontal force

so it is given as

T = \sqrt{F_x^2 + F_g^2}

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A football player kicks a ball at a 30o angle from the ground with an initial velocity of 15 m/s. What is the final velocity of
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Given that,

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Using formula of time of flight

T=\dfrac{2u\sin\theta}{g}

Where, u = initial velocity

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Put the value into the formula

T=\dfrac{2\times15\sin30}{9.8}

T=1.5\ sec

We need to calculate the final velocity of the ball

Using equation of motion

v=u+gt

v=15+9.8\times1.5

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3 years ago
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Answer:

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Explanation:

Their a difference....... A huge One

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