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MariettaO [177]
3 years ago
14

Why can't you just float around space

Physics
2 answers:
zavuch27 [327]3 years ago
5 0

Answer:

We can float in space.

Explanation:

We can float in space because of gravity. Gravity is the force that attracts anything towards the centre of earth. We can stand, walk because of gravity. Even if we jump, we return to the ground because of gravity. In space, there is no gravity. That's why, we can't walk in space and everything floats there.

vova2212 [387]3 years ago
4 0

Answer:

We float in space because there is very little gravitational force acting on them. Gravity is a force that is caused by the attraction of objects with mass. ... In space, you are very far from Earth's center of gravity (other planets have gravity as well), so it doesn't pull very hard, and we basically float around.

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<u>Given that</u>

time (t) = 10 s ,

         (S) = ?

We know that  S = ut+ 1/2 a.t²  m

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                               a = g = 9.81 m/s² ; initial velocity u= 0

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3 years ago
Red light of wavelength 633 nm from a helium-neon laser passes through a slit 0.400mm wide. The diffraction pattern is observed
kogti [31]

Answer:

a)y_{first}=5.3mm

b)y_{second}=10.6-5.3 =5.3 mm  

Explanation:

a)

The width of the central bright in this diffraction pattern is given by:

y=\frac{m\lambda D}{a} when m is a natural number.

here:

  • m is 1 (to find the central bright fringe)                
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So we have:

y_{first}=\frac{633*10^{9}*3.35}{0.0004}

y_{first}=5.3mm

b)

Now, if we do m=2 we can find the distance to the second minima.

y_{2}=\frac{2*633*10^{9}*3.35}{0.0004}

y_{2}=10.6 mm

Now we need to subtract these distance, to get the width of the first bright fringe :

y_{second}=10.6-5.3 =5.3 mm    

I hope it heps you!

     

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