I believe the correct answer from the choices listed above is the third option. The bell is seen vibrating but not heard because l<span>ight does not need a medium to travel through, but since sound waves must have a medium to vibrate, sound is not created where no air is present. Hope this answers the question. Have a nice day.</span>
Answer:
The system has no solution
Explanation:
You can check it graphically, the pair of equations represents two lines, if they never cross, or if they are parallel, the system of equations is inconsistent and has no solution.
I attached you two pictures in which you can see the graphical result.
Explanation:
y = ½ at²
Multiply both sides by 2:
2y = at²
Divide both sides by a:
t² = 2y/a
Take the square root of both sides:
t = √(2y/a)
Answer:
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Hi I need help with some questions I have on a quiz / test