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3 years ago

Wha happens to the weight of astronauts when they are in orbit

Physics

2 answers:

Lynna [10]3 years ago

5 0

That depends on the size of the orbit.

In "low Earth orbit", like the Mercury, Gemini, early Apollo flights, and aboard the ISS, the astronauts' weight is about 85% of their weight when they're standing on the Earth's surface.

BUT ... since everything in orbit is in "free fall", they don't <em>feel </em>the weight of their own body or anything else. The feeling is like being completely without any weight.

Bingel [31]3 years ago

4 0

Microgravity. It is sometimes called zero- gravity, but this is wrong. What happens is they go into free fall. On earth, gravity causes all things to fall, it can essentially be called a 'vacuum' if you will. So, I'm not to sure about it, but that's kind of what happens.

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Which statement is true regarding the vectors shown.

kap26 [50]

Answer:

Y-> + F-> +G ->=E->

Explanation:

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2 years ago

Around the turn of the twentieth century, inventor Robert Shuman was engineering products that used energy directly from the Sun

MrRa [10]

Answer: First stage

Explanation:

The four stages of technological design include:

• identifying a problem.

• Designing a solution.

• Implement, build, and test the design.

• Determine if solution met the need.

In this scenario, Robert Shuman identified the problem. This was depicted as he stated that coal and oil would eventually run out and that humans needed to learn how to use the more-abundant energy resource of the Sun,

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3 years ago

Assume that two cars have the same kinetic energy, but that the red car has twice the speed of the blue car. We then know that t

Anna71 [15]

Answer:

equal

Explanation:

8 0

2 years ago

A 40 lb box is suspended from two ropes which each make an angle of 45 degrees with the vertical. What is the tension (in pounds

givi [52]

Answer:

The tension on each rope is 28.28 lb

Explanation:

Given that,

Weight = 40 lb

Angle = 45°

We need to calculate the tension on each rope

Considering the symmetry of the system, the tension of each rope must be same

So,

$T\sin\theta+T\sin\theta=mg$

Put the value into the formula

$2T\sin\theta=mg$

$T\times\sin45=\dfrac{40}{2}$

$T=\dfrac{40\sqrt{2}}{2}$

$T=28.28\ lb$

Hence, The tension on each rope is 28.28 lb.

3 0

2 years ago

Coil the wire around the nail. Connect one end of the wire to the positive battery terminal. Connect the other end of the wire t

Ostrovityanka [42]

A). No. In fact, the longer you leave things hooked up like this, the weaker the battery becomes.

<em>B). Yes ! </em>As long as everything stays hooked up like this, the nail is a magnet. (Until the battery finally dies of exhaustion.)

C). No.

D). I don't think so. Never heard of this one.

5 0

3 years ago