Physics, 27.11.2020 09:30 toxsicity

Two toy ducks are floating in a lake 12m apart. They are bobbing up and down 25 cm above and below the lake level with a period of 2 seconds. Find the speed of the waves.

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Answer from: ralgjl

I dont know man have a mcdonalds menu insted get what you like its on me

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Explanation:

Answer from: Quest

here we know that ball will drop down by total distance 3.2 m

so here we know that

$v_{yi} = 0$

$\delta y = - 3.2 m$

now using kinematics

$\delta y = v_{yi} t + \frac{1}{2}at^2$

$-3.2 = 0 -\frac{1}{2}(9.8) t^2$

$t = 0.81 s$

now in the same time it will cover horizontal distance of 0.75 m

$\delta x = 0.75m$

so speed of the ball will be

$v = \frac{delta x }{\delta t}$

$v = \frac{0.75}{0.81} = 0.93 m/s$

Answer from: Quest

no sign of dia of fuel cell

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Two toy ducks are floating in a lake 12m apart. They are bobbing up and down 25 cm above and below t...

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