3 years ago

What would it mean if neither the red or blue litmus paper changes colors?

Physics

1 answer:

Anna35 [415]3 years ago

8 0

if the color changes, it is neutral but if it stays the same, it is an acid.

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3 years ago

What is acceleration produced by a force of 12 newton exerted on an object of mass 3kg

jarptica [38.1K]

Answer:

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Ask Your Teacher The height h in feet reached by a dolphin t seconds after breaking the surface of the water is given by h = −16

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Answer:

1 second

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h = −16t² + 32t

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16 = −16t² + 32t

Divide each of the numbers by 16

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Rearrange the equation

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$t=\frac{-(-2)\pm \sqrt{(-2)^2-4\times 1\times 1}}{2\times 1}\\\Rightarrow t=\frac{2\pm 0}{2}\\\Rightarrow t=1\ s$

So, time taken by the dolphin to jump out of the water and touch the trainer's hand is 1 second.

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4 years ago