4 years ago

1.Sobre a queda-livre,assinale V para verdadeiro e F para falso

Physics

1 answer:

lisov135 [29]4 years ago

8 0

Answer:pelo o que eu sei é ..

Explanation:

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451.13 J/kg.°C

Explanation:

Applying,

Q = cm(t₂-t₁)............... Equation 1

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Make c the subject of the equation

c = Q/m(t₂-t₁).............. Equation 2

From the question,

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Suppose that on earth you can throw a ball vertically upward a distance of 1.20 m. Given that the acceleration of gravity on the

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t = Time taken

u = Initial velocity

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Accelration going up is considered as negetive

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$v^2-u^2=2as\\\Rightarrow -u^2=2as-v^2\\\Rightarrow -u^2=2\times -9.81\times 1.2-0^2\\\Rightarrow u=\sqrt{2\times 9.81\times 1.2}\\\Rightarrow u=4.85\ m/s$

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$v^2-u^2=2as\\\Rightarrow s=\frac{v^2-u^2}{2a}\\\Rightarrow s=\frac{0^2-4.85^2}{2\times -1.67}\\\Rightarrow s=7.04\ m$

The displacement of the ball on the moon is 7.04 m

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