Answer:
30 T
Explanation:
The magnetic field due to first wire at point A is 
Magnetic field due to second wire at point A  is  
As the current flows in opposite direction in both the wire so net magnetic magnetic field at point A is 
So net magnetic field  as
  as  is given as 10 T  in question
  is given as 10 T  in question
 
        
             
        
        
        
Answer:
-14 m/s
Explanation:
Saki's initial velocity is:

where we put a negative sign because the problem tells us to use a coordinte system in which rightward is positive, while Saki's initial velocity is towards the left.
Saki's acceleration due to the breeze is:

Where again, we put a negative sign since the acceleration is leftward.
In order to find Saki's velocity after t = 6 s, we can use the following equation:

And substituting all the numbers, we get

and the negative sign means the new velocity is leftwards.
 
        
             
        
        
        
The amount of potential energy the block contains is 2,822.4 Joules
<u>Given the following data:</u>
- Height of platform = 24 meters.
We know that the acceleration due to gravity (g) of an object on planet Earth is equal to 9.8  .
.
To determine the amount of potential energy the block contains:
Mathematically, potential energy (P.E) is given by the formula;

Where:
- g is the acceleration due to gravity.
- h is the height of an object.
Substituting the parameters into the formula, we have;

Potential energy (P.E) = 2,822.4 Joules
Read more: brainly.com/question/23153766
 
        
             
        
        
        
Answer:
reducing temperature of the surrounding
Explanation:
combustion reactions are exothermic so they give off heat. reducing the temperature of the surrounding will enable more efficient energy transfer 
 
        
             
        
        
        
Answer:
life is possible on earth
Explanation:
The sun delivers thermal energy to earth through radiation. Due to solar energy life of earth is possible on earth because all the process of human life depends on the solar energy. Due to sunlight plants grow and prepare there food. Human and plant cycle depends on the food prepared by plant. Thus, we can say that life on earth is possible due to thermal energy provided by sun.