Answer:
The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases.
Cancer-causing agents are also called <span>carcinogens</span>
Answer:

Explanation:
From the question we are told that:
Frequency 
Sound intensity drop 
Time 
Therefore
Sound intensity Ratio

Generally the equation for Sound intensity is mathematically given by



Generally the equation for Quality Factor is mathematically given by



Answer:
The value is 
Explanation:
From the question we are told that
The speed of the marathon runner is 
The distance from the distance from the finish is 
The speed of the bird is 
Generally the time taken for the runner to reach the finish is mathematically represented as



So the distance covered by the bird is



Use force (thrust) equals mass times acceleration.