Answer: Hence, the final temperature is 350 K
Explanation :
To calculate the final temperature of the system, we use the equation given by Gay-Lussac Law. This law states that pressure of the gas is directly proportional to the temperature of the gas at constant pressure.
Mathematically,

where,
 are the initial pressure and temperature of the gas.
 are the initial pressure and temperature of the gas.
 are the final pressure and temperature of the gas.
 are the final pressure and temperature of the gas.
We are given:

Putting values in above equation, we get:

Hence, the final temperature is 350 K
 
        
             
        
        
        
Protons and neutrons are packed together in a very small region called nucleus. Protons are positively charged and we know that like charges repel. Then how is it that protons are not repelling each other and flying away from nucleus? 
You may think that gravitational force is holding all the protons together but it is not so. Gravitational force is many times weaker than repulsive force.
It is actually strong force which holds proton together. At this short distance, strong force comes into play and is several times stronger than the repulsive force.
 
        
             
        
        
        
D. March because it is just below the 1 million marker on the graph and it is the only one that low.
        
             
        
        
        
Answer:
B = 7.6 T   direction of + x
Explanation:
For the proton beam to continue in the same direction the electric and magnetic forces must be equal
                = 0
 = 0
                = F_{e}
 = F_{e}
               Fm = q E
              
The electric force is in the direction of the electric field because it is the charge of the positive proton, the electric force goes in the direction of –y, therefore, the magnetic force cancels this force must go in the direction of + y
  The magnetic force is
              F_{m} = q v x B = q v B sin θ
              θ = 90
              B = q E / q v
              B = E / v
              B = 800/105
              B = 7.6 T
To find the direction of the magnetic field we use the right hand rule, the thumb goes in the direction of the proton velocity, the fingers extended in the direction of the magnetic field and the palm is the direction of force, for a positive charge.
 Thumb goes in the direction of the + z axis
Palm in the direction of +y
Fingers point in the direction of + x
 
        
             
        
        
        
The circuit change when the wire is added will see a short circuit occur and makes bulbs 1 and 2 turn off but keeps bulbs 3 and 4 lit. Option D. This is further explained below.
<h3>
How does the circuit change when the wire is added?</h3>
Generally, Electronic circuits consist of a series of interconnected parts that form a closed loop through which electricity may flow.
In conclusion, If two wires are linked together, a short circuit will develop, cutting power to bulbs 1 and 2. But there is no impact on bulbs 3 and 4. There is no problem with bulbs 3 and 4.
Read more about circuit 
brainly.com/question/21505732
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