Why do astronauts train underwater

Physics

2 answers:

nexus9112 [7]3 years ago

8 0

They train underwater also to simulate an amount of resistance similar to that of space.

wel3 years ago

5 0

Well that is b/c the atmosphere and environment is the same. like for example you know how its not easy to maneuver its similar to space. another thing is the supply you need in water is similar to space you need oxygen tanks for both

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Usimov [2.4K]

Answer:

1- t^3

2- t^2

3- t1

Explanation:

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ac = v²/r

where,

ac = centripetal acceleration

v = speed

r = radius

for a constant radius the centripetal acceleration will be directly proportional to the speed of object. The speed of pendulum will be lowest at t1 due to zero speed initially. Then the speed will increase gradually having greater speed at t^2 and the highest speed and centripetal acceleration at t^3. Therefore, the three instants in tie can be written in following order from greatest centripetal acceleration to lowest:

1- t^3

2- t^2

3- t1

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dmitriy555 [2]

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3 years ago

A gray kangaroo can bound across a flat stretch of ground with each jump carrying it 10 m from the takeoff point. you may want t

Stells [14]

Answer:

Takeoff speed of Kangaroo = 12.91 m/s

Explanation:

The distance reached by Kangaroo = 10 meter

Angle at which it jumps = 18°

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Range of projectile = Time taken for the projectile to reach ground* Horizontal velocity

Time taken for the projectile to reach ground: