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3 years ago

What best explains why a wood burning fire place represents an open system

Physics

2 answers:

nikitadnepr [17]3 years ago

8 0

Answer:

Because it is open to more wood being burned and it is giving smoke out

Explanation:

Sedaia [141]3 years ago

3 0

Smoke and hot gases leave the system through the chimney, and this draws new air into the system from surrounding parts of the galaxy that are outside the system.

So a fireplace that's turned on is open at both the input and the output.

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Two boats start together and race across a 48-km-wide lake and back. Boat A goes across at 48 km/h and returns at 48 km/h. Boat

nika2105 [10]

Answer:

Part 1)

Boat A will win the race

Part 2)

Boat A will win the race by 48 km as the 2nd boat will reach the other end while boat A will just touches the finish line

Part 3)

average velocity must be zero

Explanation:

As we know that the distance moved by the boat is given as

$d = 48 km$

now the time taken by the boat to move to and fro is given as

$t = \frac{d}{v}$

$t = \frac{48 + 48}{48}$

$t = 2 hrs$

Time taken by Boat B to cover the distance

$t = \frac{48}{24} + \frac{48}{72}$

$t = 2.66 h$

Part 1)

Boat A will win the race

Part 2)

Boat A will win the race by 48 km as the 2nd boat will reach the other end while boat A will just touches the finish line

Part 3)

Since the displacement of Boat A is zero

so average velocity must be zero

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3 years ago

What happens to the strength of the magnetic field as you come closer to the current carrying wire

Leokris [45]

Form concentric circles around the wire

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3 years ago

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statuscvo [17]

Answer:

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Explanation:

the matter expands, turning into steam, a gas.

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aleksklad [387]

A. Alternating current

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