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dimaraw [331]
3 years ago
11

In the diagram below, a 10-kilogram ball is fired with a

Physics
1 answer:
Tcecarenko [31]3 years ago
3 0

Answer:

A) 5m/s

Explanation:

Momentum of ball in one direction=momentum of cannon in other direction

mv = mv

(10)(500)=(1000)v

5000=1000v

∴v=5m/s

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The most recently discovered system close to Earth is a pair of brown dwarfs known as Luhman 16. It has a distance of 6.5 light-
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Answer:

1.99 parsecs.

Explanation:

We have been given that the most recently discovered system close to Earth is a pair of brown dwarfs known as Luhman 16. It has a distance of 6.5 light-years.

We know that one light year equals to 0.306601 parsecs. To convert 6.5 light-years to parsecs, we will multiply 0.306601 by 6.5.

6.5\text{ Light-years}=6.5\times 0.306601\text{ Parsecs}

6.5\text{ Light-years}=1.9929065\text{ Parsecs}

6.5\text{ Light-years}\approx 1.99\text{ Parsecs}

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3 years ago
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B. Because I say so
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3 years ago
IF YOU GOOD AT SCIENCE PLEASE ANSWER THIS ASAP
xz_007 [3.2K]

Answer:

I would believe that it would be the last option

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