3 years ago

H2SO4 is a strong acid. Which two ions do you expect to find in a solution of H2SO4?

Physics

1 answer:

marissa [1.9K]3 years ago

4 0

I say b is the right answer

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Answer:

a. $F=126N$

b. $E_K=1323J$

Explanation:

Given:

$m=54kg$

$v=7 m/s$

$t= 3s$

The runner force average to find given the equations

$F=m*a$

$a=\frac{v}{t}$

$F=m*\frac{v}{t}=54kg*\frac{7m/s}{3s}$

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Work done by the system by this force so

$W=F*d$

$W=E_K$

$E_K=\frac{1}{2}*m*v^2$

$E_K=\frac{1}{2}*54kg*(7m/s)^2$

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Let the final velocity be v.

By using the equation,

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or, v = 2 + 40

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