<h2>The intensity of siren is 0.015 W m⁻²</h2>
Explanation:
The intensity of sound is inversely proportional to the square of distance between source and the observer .
Thus Intensity at a distance 25 m is I₁ ∝ 
I
Similarly the intensity at a distance 50 m is I₂ ∝ 
II
Dividing II by I , we have
= 
= 
= 
Thus I₂ = x 0.06 = 0.015 W m⁻²
Complete Question
The complete question is shown on the first uploaded image
Answer:
The value is 
Explanation:
From the question we are told that
The mass of the wheel is m = 6.9 kg
The radius is 
The radius of gyration is 
The angle is 
The force which the massless bar is subjected to 
Generally given that the wheels rolls without slipping on the flat stationary ground surface, it implies that point A is the center of rotation.
Generally the moment of inertia about A is mathematically represented as
Here 
is the moment of inertia about G with respect to the radius of gyration which is mathematically represented as
=>
=>
=>
Generally the torque experienced by the wheel is mathematically represented as
=> 
=> 
Generally this torque is also mathematically represented as
=> 
=>
Answer:
<h2>The answer is 12 m</h2>
Explanation:
The distance covered by an object given it's velocity and time taken can be found by using the formula
distance = velocity × time
From the question we have
distance = 2 × 6
We have the final answer as
<h3>12 m</h3>
Hope this helps you
Answer:
5 I think will be none of the above and 6 could be all of the above
Answer:
A
Explanation:
The answer would be A because when feet push down on anything, the force will push down the skateboard
