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mel-nik [20]
3 years ago
8

A rocket achieves lift off due to ______.

Physics
2 answers:
Alex17521 [72]3 years ago
4 0
B.) Action and reaction forces helps during lift off of a rocket.

Hope this helps!
sleet_krkn [62]3 years ago
3 0

Answer:

B. Action and reaction forces

Explanation:

Newton's third law of motion, which states that action and reaction forces are equal and opposite, makes a rocket achieve lift off.

When the engine of a rocket burns fuel, the rocket experiences a thrust (a push) on the front that pushes it upwards. This thrust causes an equal and opposite push on the exhaust gas of the rocket downwards. The burning of the fuel is the action, <em>the thrust</em>, and it causes the rocket to move upwards. The push back on the exhaust gas is the reaction caused by the <em>weight</em> of the rocket.

For the rocket to lift off, the thrust must be greater than the weight of the rocket.

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What is the reason for converting units?
ELEN [110]

Answer:

Unit conversion is very important because the rest of the world other than three countries uses the metric system. So, converting units is important in science because it uses the metric system. The metric system is measurements like cm, m, l, mL, etc...

Explanation:

Units can: Help to show another person the exact amount you have. Assist in solving a mathematical problem, especially in chemistry, where you can follow the units to get to the answer. Show which measurement system the person is using (i.e. metric or standard)

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5 0
3 years ago
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5 0
4 years ago
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Which of the following statements about electromagnetic radiation it true? A.electromagnetic waves with long wavelength are more
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7 0
3 years ago
An eagle is flying horizontally at a speed of 3.1 m/s when the fish in her talons wiggles loose and falls into the lake 5.8 m be
DedPeter [7]

Answer:11.101 m/s

Explanation:

Given

Velocity of eagle=3.1 m/s

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Fish is dropped with a horizontal velocity of 3.1 m/s

time taken by fish to reach lake is

h=ut+\frac{gt^2}{2}

here u=0 (vertical velocity)

5.8=\frac{9.8\times t^2}{2}

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Vertical velocity acquired by fish is v=u+at

v=0+9.8\times 1.087=10.66 m/s

Horizontal velocity=3.1 m/s

Therefore net velocity=\sqrt{10.66^2+3.1^2}=11.101 m/s

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\theta =73.74^{\circ} below horizontal

8 0
4 years ago
What will most likely happen if a light wave moves through a solid?
Kazeer [188]
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hope this helps.
8 0
4 years ago
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