Sound waves travel through the air, liquids, and solids. they transfer energy from the source of the sound to its surroundings
        
             
        
        
        
Answer:
Please find the answer in the explanation 
Explanation:
1.) How far is Object Z from the origin at t = 3 seconds
The distance of the object Z from the origin will be the slope of the graph. 
Slope = 4/2 = 2m
2.) Which object takes the least time to reach a position 4 meters from the origin ?
According to the graph given to the question above, object Z has the list time which is 2 seconds since object X does not start from the origin. 
3.) Which object is farthest from the origin at t = 2 seconds?
The correct answer is still object Z because it has the highest slope. 
 
        
             
        
        
        
Answer:
 t = 5.05 s
Explanation:
This is a kinetic problem.
a) to solve it we must fix a reference system, let's use a fixed system on the floor where the height is 0 m
b) in this system the equations of motion are
               y = v₀ t + ½ g t²
where v₀ is the initial velocity that is v₀ = 0 and g is the acceleration of gravity that always points towards the center of the Earth
e)    y = 0 + ½ g t²
      t = √ (2y / g)
      t = √(2 125 / 9.8)
      t = 5.05 s
 
        
             
        
        
        
Answer:
THEY WOULD FIND DED FISH:)))))
Explanation:
 
        
             
        
        
        
Answer:
The value of third charge is 0.8μC.
Explanation:
Given that.
Magnitude of net force=4.444 N
According to figure,
Suppose, First charge = 2.4 μC
Second charge = 6.2 μC
Distance r₁ = 9.8 cm
Distance r₂ = 2.1 cm
We need to calculate the value of r
Using Pythagorean theorem 

Put the value into the formula


We need to calculate the force
Using formula of force

Force F₁₂,



Force F₂₃,

We need to calculate the value of third charge





Hence, The value of third charge is 0.8μC.