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Darina [25.2K]
3 years ago
6

A ball is thrown downward with an initial speed of 7 m / s. The ball's velocity after 3 seconds is m / s. (g = -9.8m / s²)

Physics
1 answer:
yan [13]3 years ago
5 0

Answer:

-36.4 m/s

Explanation:

final velocity= initial velocity + acceleration x time

7 + (-9.8)(3)= -36.4 m/s

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In the absence of air resistance, a ball is thrown vertically upward with a certain initial KE. When air resistane is a factor a
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Answer:

Explanation:

A ball is thrown vertically upward with a certain Kinetic Energy in the absence of air resistance and while returning it experiences air resistance.

Air resistance causes the ball to lose its kinetic energy as it provides resistance which will convert some of its kinetic energy to heat energy.

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5 0
3 years ago
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B  acid + base    →  water + salt

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Here, hydrogen combines with hydroxide to form water.

Titration is usually used to carry out this reaction in the laboratory.

An indicator is added to the base and at end the color of the reaction changes.

At this point the acids have completely been neutralized with the base.

Learn more:

Neutralization brainly.com/question/4455839

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5 0
3 years ago
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<h2>Answer: Earth's orbital path around the Sun</h2><h2></h2>

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<u />

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Hence, the correct option is Earth's orbital path around the Sun.

7 0
3 years ago
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