Answer:
The Taurus "bull" is home to 500 stars, six of which are visible to the naked eye.
Explanation:
 
        
             
        
        
        
Answer:
The air is contained at a high pressure in the tube. When it escapes from a small orifice, it suddenly expands. A large amount of its heat is absorbed in the process of expansion resulting in considerable fall in its temperature. This is why the escaping air feels cold.
 
        
             
        
        
        
Answer:
The electric field at origin is 3600 N/C
Solution:
As per the question:
Charge density of rod 1, 
Charge density of rod 2, 
Now, 
To calculate the electric field at origin:
We know that the electric field due to a long rod is given by:

Also,
 (1)
                  (1)
where
K = electrostatic constant = 
R = Distance 
 = linear charge density
 = linear charge density
Now,
In case, the charge is positive, the electric field is away from the rod and towards it if the charge is negative.
At x = - 1 cm = - 0.01 m:
Using eqn (1):

 (towards)
     (towards)
Now, at x = 1 cm = 0.01 m :
Using eqn (1):

 (towards)
     (towards)
Now, the total field at the origin is the sum of both the fields:

 
        
             
        
        
        
Isaac Newton’s second law of motion
        
             
        
        
        
<h2>
Height of bridge is 83.66 m</h2>
Explanation:
We have equation of motion s = ut + 0.5 at²
         Initial velocity, u = 25.3 m/s
         Acceleration, a = 9.81 m/s²  
         Time, t = 2.29 s      
      Substituting
                       s = ut + 0.5 at²
                       s = 25.3 x 2.29 + 0.5 x 9.81 x 2.29²
                       s = 83.66 m
       Height of bridge is 83.66 m