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AnnyKZ [126]
3 years ago
8

Finish this equation useing the term "average speed" and "time interval ": total distance =

Physics
2 answers:
Natasha2012 [34]3 years ago
8 0

Total distance during the time interval  = 

         (average speed during the time interval)
times
         (length of the time interval) . 
enyata [817]3 years ago
8 0
It's speed equals ( distance Divided by time ) I hope this helps
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A professor, with dumbbells in his hands and holding his arms out, is spinning on a turntable with an angular velocity. What hap
Olenka [21]

Answer:

<em>His angular velocity will increase.</em>

Explanation:

According to the conservation of rotational momentum, the initial angular momentum of a system must be equal to the final angular momentum of the system.

The angular momentum of a system = I'ω'

where

I' is the initial rotational inertia

ω' is the initial angular velocity

the rotational inertia = mr'^{2}

where m is the mass of the system

and r' is the initial radius of rotation

Note that the professor does not change his position about the axis of rotation, so we are working relative to the dumbbells.

we can see that with the mass of the dumbbells remaining constant, if we reduce the radius of rotation of the dumbbells to r, the rotational inertia will reduce to I.

From

I'ω' = Iω

since I is now reduced, ω will be greater than ω'

therefore, the angular velocity increases.

5 0
3 years ago
A 0.111 kg hockey puck moving at 55 m/s is caught by a 80. kg goalie at rest. with what speed does the goalie slide on the frict
madreJ [45]

Answer:

0.076 m/s

Explanation:

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After catching the puck, the goalie slides at 0.076 m/s.

8 0
3 years ago
How did Aristotle contribute to science?
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Look at this picture of a whale shark. Which question about the whale shark is nonscientific?
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I need the picture to answer the question

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The focal length is the distance from the lens (or mirror) to the: image object focal point center of curvature
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The answer is focal point.
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