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rewona [7]
3 years ago
7

Which tools would be necessary to determine whether or not a large block will float, without using water?

Physics
1 answer:
iren2701 [21]3 years ago
6 0

Answer:

The answer is A Ruler and Balance

Explanation:

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Which of the following advancements could science and technology reasonably contribute to society?
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3 years ago
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In 0.60 seconds, a projectile goes from 0 to 610 m/s. What is the acceleration of the projectile?
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Answer: a=1016.66 m/s^{2}

Explanation:

Acceleration a is expressed in the following formula:

a=\frac{V_{f}-V_{o}}{t}

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V_{f}=610 m/s is the final velocity of the projectile

V_{o}=0 m/s  is the initial velocity of the projectile

t=0.6 s is the time

Solving:

a=\frac{610 m/s-0 m/s}{0.6 s}

a=1016.66 m/s^{2} This is the acceleration of the projectile

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Answer:

It I’d B

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How far does a car travel in 90 seconds if it’s traveling 55 m/s? Show equation
podryga [215]

You just said the car is traveling at the speed of 55 m/s.  If I understand this  correctly, that means the car will cover:

55 meters in the first second,

55 meters in the 2nd second,

55 meters in the 3rd second,

55 meters in the 4th second,

55 meters in the 5th second,

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55 meters in the 87th second,

55 meters in the 88th second,

55 meters in the 89th second, and

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That's 55 meters 90 times.  If you just move these words around a little bit, it says "90 times 55 meters" . . . a pretty simple arithmetic problem.

The equation is . . . <em>Distance = (55 m/s) times (time, in seconds)</em> .

I get <em>4,953 meters</em>.  You should check me on this.

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