Because it clogs up your canal preventing sound to pass through. Usually you can hear nothing or its really quiet, the best thing to do is wait and the ear wax will clear unless you have an object or bug stuck in your ear, I had it happen to me
Currently, many researchers are still working to find them.
Currently , its only theorized and they should be based on the quantum and particle theory
hope this helps
Answer:
A. 48 seconds
Explanation:
In one part of the journey the moving walkway helps Barry to arrive faster but does the opposite in the second part of the journey. Let us define B as Barry’s speed and W as the speed of the walkway. We can set two equations as it follows:
B+W = (30 m)/(30 s) =1 m/s
B-W = (30 m)/(120 s) =0,25 m/s
If we add both equations, the speed of the walkway cancels itself and we have:
2*B = 1+0,25 = 1,25 m/s
B = (1,25 m/s)/2 = 0,625 m/s
Knowing Barry’s speed and applying the definition of velocity, we can find the time that it would take him to walk from one end of the walkway to the other without assistance.
v = x/t → t = x/v = (30 m)/(0,625 m/s) = 48 s
Have a nice day! :D