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maxonik [38]
4 years ago
9

Qualitative and Quantitative Momentum Problems.

Physics
1 answer:
Elena L [17]4 years ago
3 0

Answer: the reaction force is large.

Explanation:

From Newton's third law, we know that for every action, there is equal and opposite reaction.

Since, a large amount of high speed of water is ejecting out from hose. The high momentum due to large speed in short duration of time would cause water to eject out with great force. The reaction force would act on the firefighter holding the hose. An equal amount of large force would act on him. Thus, it is difficult for a firefighter to hold a hose that ejects large amounts of high speed water.

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Note that the scale bar under the photo is labeled 1 μm (micrometer). The scale bar works the same way as a scale on a map, wher
AnnZ [28]

Answer:

Hello your question has some missing parts attached below is the complete question

answer : 4 μm

Explanation:

since the scale bar works the same way as a scale on a map , each bar will therefore represent 1 μm and the mature parent cell's is about 4 times the labeled value hence the Mature parent cell diameter will approximately be : 4 μm

8 0
3 years ago
What happens to the particles in a substance when temperature rises
kolbaska11 [484]

Answer:

They gain kinetic energy

Explanation:

When the temperature of the particles in a substance rise, its internal energy increases. This internal energy is thus translated to kinetic energy of the particles in the substance. If the substance is a solid, as the kinetic energy increases, the vibrations of the particles of the substance increases causing it to undergo a change of state to liquid when the temperature reaches its melting point.

This change of state also occurs from the liquid state to the gaseous state as the internal energy of the substance, and thus the kinetic energy of the particles increase when the temperature reaches the substance's boiling point.

<u>So, as the temperature of a substance rises, the particles of the substance gain kinetic energy.</u>

7 0
3 years ago
Which statement accurately describes a relationship between parts of the
sammy [17]

<u>Answer:</u>

C. There are trillions of galaxies in the universe.

<u>Explanation:</u>

A. is wrong as nebulae are found inside galaxies and inside the universe, not inside stars.

B. is wrong because there are trillions of galaxies in the universe, not the latter.

D. The solar system consists of the eight planets, the Sun, comets, meteors, dwarf planets, and is inside the Milky Way galaxy and thus cannot have galaxies inside it.

<em>Please give Brainliest</em>

8 0
3 years ago
Read 2 more answers
How far (in meters) will you travel in 3 minutes running at a rate of m/s?
Daniel [21]
10 minutes I don’t know id this is right
3 0
3 years ago
Read 2 more answers
How should a line look like if an object is at rest(stopped) on a distance-time graph?
guajiro [1.7K]

If an object is at rest, then its distance doesn't change as time goes on.

On the graph, the points for each time are all at the same distance. They form a horizontal line.

5 0
3 years ago
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