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Ludmilka [50]
3 years ago
7

How can we define that an object is moving in vector quentity​

Physics
2 answers:
Rama09 [41]3 years ago
5 0

Momentum is a vector quantity. The direction of the momentum vector is the same as the direction of the velocity of the ball. In a previous unit, it was said that the direction of the velocity vector is the same as the direction that an object is moving.

I hope it's help you..

Thanks♥♥

Fittoniya [83]3 years ago
4 0

Explanation:

An object moving in vector quantity can be defined by its magnitude and direction.

If the object has both magnitude and direction and direction or magnitude or both are changing as they are moving, then it is a vector quantity.

I hope it helped U ❤️❤️❤️

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At time t = 0 a 2230-kg rocket in outer space fires an engine that exerts an increasing force on it in the +x-direction. This fo
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Answer:

I=4090.8Ns

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A=\frac{F}{t^2}=\frac{781.25N}{(1.49s)^2}=351.9N/s^2

The impulse of a force is I=\int\limits {F} \, dt, so for our case we have:

I=\int\limits^{t_f}_{t_i} {At^2} \, dt=A (\frac{t_f^3}{3}-\frac{t_i^3}{3})

For our case t_i=2s and t_f=2s+1.5s=3.5s, so we have:

I = (351.9N/s^2) (\frac{(3.5s)^3}{3}-\frac{(2s)^3}{3})=4090.8Kgm/s

7 0
4 years ago
How does the intensity of a sound wave change if the distance from the
Alex17521 [72]

Answer:

The new intensity decreases by a factor of 16.

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or

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If the distance from the  source is increased by a factor of 4, r' = 4r

So,

I'=\dfrac{1}{r'^2}\\\\I'=\dfrac{1}{(4r)^2}\\\\I'=\dfrac{1}{16}\times \dfrac{1}{r^2}\\\\I'=\dfrac{I}{16}

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8 0
4 years ago
Mai says that ocean water is a solution. Tom says that its a suspension. Can they both be correct? Explain.
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Answer:

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