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Compression and Rarefaction

Two astronaut...

Question

Two astronauts are floating to each other in space.Can they talk each other without using any special devices?Give reasons

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Solution

Dear Student If the two astronauts are floating in the space they cannot talk to each other without using any special device because there is no medium of propagation of their sound waves in the space. In space, there is only vacuum. So, without any special device the two astronauts can't "talk to each other". Regards

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Two astronauts are floating close to each other in space. Can they talk to each other without using any special device? Give reasons.

How can astronaut talk in space without any special device.

Q. Two astronauts, each of mass

75 k g

, are floating next to each other in space, outside the space shuttle. They push each other through a distance of an arm's length

= 1 m

each with a force of

300 N

.If the final relative velocity of the two, w.r.t each other is

V_{0} m / s

, find the value of

\frac{(V_{0})^{2}}{4} (

Note that both astronauts are displaced by

1 m

)

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