2 years ago

A ball is dropped from rest.

Physics

1 answer:

nignag [31]2 years ago

6 0

Answer:

How fast is it going? 29.4 Meters per second

How far has it fallen? 44.1 meters

Explanation: Gravitional Acceleration: 9.8 meters per secnd squared!

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A 750-kg automobile is moving at 16.8 m/s at a height of 5.00 m above the bottom of a hill when it runs out of gasoline. The car

anygoal [31]

Answer:h=19.4 m

Explanation:

Given

mass of automobile $m=750\ kg$

Initial height of automobile $h_o=5\ m$

Velocity at this instant $v=16.8\ m/s$

If the car stops somewhere at a height $h$

Thus conserving total energy we get

$K_i+U_i=K_f+U_f$

$\frac{1}{2}mv^2+mgh_o=\frac{1}{2}m(0)^2+mgh$

$\frac{v^2}{2g}+h_o=h$

$h=5+\frac{16.8^}{2\times 9.8}$

$h=5+14.4$

$h=19.4\ m$

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2 years ago

Why is it important to use democratic method of choosing someone for a position of authority

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So that the correct representative of the people gets elected to head the people- so that a person who is thought to be capable enough to rule over people and take the correct decisions may be representative to the people.

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Which of the following is an example or an orginasm mantaining homeostasis

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a cat grooming itself

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5. How does a jack make changing a tire easier?

strojnjashka [21]

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Explanation:

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Given the recent evidence suggesting that species change due to a certain genetic variations, what would be true?

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c) mutation and natural selection both cause changes in a population

Explanation:

Hope it help

Mark me as brainliest

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