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maks197457 [2]
3 years ago
14

You are an astronaut on a spacewalk to fix your spacecraft with a hammer. Your lifeline (tether) breaks and your jetpack on your

back is out of fuel. To return safely to your spacecraft (without anyone to help you) you should_______.
Physics
2 answers:
tamaranim1 [39]3 years ago
8 0

Explanation:

Here we will apply the law of conservation of momentum which is one of the powerful laws of physics. As this law states that the "if no external forces are acting on the system then the net momentum of the system before and after must remain conserved. As the astronaut has a hammer, if he throws it in the direction opposite of his space craft, he will automatically move towards the space craft to conserve the momentum. That's how he can reach the space craft easily by throwing away the hammer.

garri49 [273]3 years ago
3 0

Answer:

  • One must get rid of any heavy material like the jet pack and other materials other then the space suit. And, then as the amount of mass,m gained by the person decreases we know that there is a net gravitational force,F(G) between the spacecraft and the individual. So, the astronaut will be pulled by the larger in body spacecraft to itself and eventually will be saved due to the force of attraction present between the different celestial entities inside the universe.
  • So if i was one of the astronaut on a spacewalk to fix my spacecraft with a hammer. And lets say my lifeline (tether) breaks and my jet pack on my back is out of fuel. To return safely to my spacecraft (without anyone to help you) i should <u>first get rid of any heavy material other then my space suit and then i would myself will be compelled towards the space craft.</u>

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Help please :pensive:
tino4ka555 [31]

Answer:

0m/s²

Explanation:

Given parameters:

Initial velocity of the boat = 8m/s

Final velocity  = 8m/s

Time taken  = 4s

Unknown:

Acceleration of the boat = ?

Solution:

Acceleration is the rate of change of velocity with time.

It is mathematically expressed as;

        A = \frac{v - u}{t}

A is the acceleration

v is the final velocity

u is the initial velocity

t is the time taken

    Insert the parameters and solve;

  A = \frac{8-8}{4}   = 0m/s²

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Crazy boy [7]
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2) F=ma
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7 0
2 years ago
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Anvisha [2.4K]

Answer:

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hope this helps u

Explanation:

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r-ruslan [8.4K]

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Electromagnetic waves<span> <span>are used to transmit long/short/FM wavelength radio </span>waves, and TV/telephone/wireless signals or energies. They are also responsible for transmiting energy in the form of microwaves, infrared radiation<span> (IR), visible light (VIS), ultraviolet light (UV), X-rays, and gamma rays.</span></span>

 

The correct answer between all the choices given is the second choice or letter B. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

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never [62]
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