Answer:3,600 Newtons
 
Explanation:
The net force acting on the car is 
3×10^3squared
 Newtons.
Force is defined as the product of the mass of the body and its aaceleration,⇒F=ma
Substituting the above given values we get,F=(1500kg) (2.0m /s^2 squared)=3000 N=3×10^3 squared N.
N=newtons
 
        
             
        
        
        
To minimize neutron leakage from a reactor, the ratio of the surface area to the volume should be a minimum. For a given volume V the ratio of the sphere will be  .
.
We know that the surface area and volume of the sphere is given by: 

Therefore, the ratio between the surface area and the volume for the sphere will be:

Equating the volume to the constant c, we will find the value of  .
.

Substituting the value of r in the ration between surface area and volume, we get:

Calculating the constants, we get:

Hence, the ration between surface area and volume is 
To learn more about surface area and volume of sphere, refer to:
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The distance covered on the floor after leaving the ramp is the dependent variable.
- As a result of the marble's size, the substance it is constructed of, and the angle at which it is placed onto the ground, the distance it rolls varies. 
- Therefore, the angle at which the marble is released onto the ground, the type of material used to make the stone, or its size can all be considered independent variables.
<h3>What is Independent variable?</h3>
- There are independent and dependent variables in every experiment. 
- A variable is considered independent if its change is not influenced by the change in another variable or factor.
<h3>What is Dependent variable?</h3>
In any experiment, the dependent variable must be measured or determined, and it must change as the independent variable does.
Learn more about independent and dependent variable here:
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Answer:
a
     
b
    
Explanation:
From the question we are told that 
      Their distance apart is  
       The  wavelength of each source wave 
Let the distance from source A  where the construct interference occurred be z 
Generally the path difference for constructive interference is 
               
Now given that we are considering just the straight line (i.e  points along the line connecting the two sources ) then the order of the maxima m =  0 
   so 
         
=>     
=>     
Generally the path difference for destructive  interference is 
            
=>         
=>        
substituting values 
           
 =>      
So  
       
       
and 
       
 =>   
=>    
 
        
             
        
        
        
Answer:
When an object moves in a straight line with a constant acceleration, you can calculate its acceleration if you know how much its velocity changes and how long this takes.
The formula is,
Acceleration = change in velocity / time taken
The equation for acceleration can also be represented as:
a = (v-u) \ t
The change in velocity v – u = 5 – 0 = 5 m/s.
The acceleration = change in velocity ÷ time = 5 m/s ÷ 2 s = 2.5 m/s^2