The conservation of the momentum allows to find the result of how the astronaut can return to the spacecraft is:
-  Throwing the thruster away from the ship.
The momentum is defined as the product of the mass and the velocity of the body, for isolated systems the momentum  is conserved. If we define the system as consisting of the astronaut and the evo propellant, this system is isolated and the internal forces become zero. Let's find the moment in two moments.
Initial instant. Astronaut and thrust together.
         p₀ = 0
Final moment. The astronaut now the thruster in the opposite direction of the ship.
         = m v + M v '
 = m v + M v '
where m is propellant mass and M the astronaut mass.
As the moment is preserved.
        0 = m v + M v ’
       v ’=  
  
We can see that the astronaut's speed is in the opposite direction to the propeller, that is, in the direction of the ship.
The magnitude of the velocity is given by the relationship between the masses.
In conclusion, using the conservation of the momentun we can find the result of how the astronaut can return to the ship is:
-  Throwing the thruster away from the ship.
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Answer:
add more coils
Explanation:
this increases the strength of the magnetic field
 
        
             
        
        
        
Answer:
The mass of the wheel is 2159.045 kg
Explanation:
Given:
Radius 
 m
Force  N
 N
Angular acceleration 
From the formula of torque,
  Γ  (1)
                                        (1)
  Γ  (2)
                                       (2)
 
Find momentum of inertia  from above equation,
 from above equation,
 
 
  
 
Find the momentum inertia of disk,
  


 Kg
 Kg
Therefore, the mass of the wheel is 2159.045 kg
 
 
        
             
        
        
        
The option that could be the hypothesis for this experiment is that D. Abstract paintings may elicit feelings of stress as students try to determine the meanings of the paintings; therefore, abstract paintings may cause college students to report lower feelings of peace.
<h3>What is a hypothesis?</h3>
It should be noted that a hypothesis simply means the proposed explanation made on the basis of limited evidence.
From the information, Smith is conducting an experiment to determine if paintings of landscapes produce more peaceful feelings than abstract paintings.
Therefore, the option that could be the hypothesis for this experiment is that abstract paintings may elicit feelings of stress as students try to determine the meanings of the paintings; therefore, abstract paintings may cause college students to report lower feelings of peace.
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