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Evgen [1.6K]
3 years ago
12

A spaceship far from all other objects uses its impulse power system to attain a speed of 104 m/s. The crew then shuts off the p

ower. According to Newton's first law, what will happen to the motion of the spaceship from then on? (Select all that apply.)
Physics
1 answer:
asambeis [7]3 years ago
4 0

Answer:

Velocity remains the same at 104 m/s

Explanation:

According to Newton's 1st law of motion, an object subjected to no force or net force equal 0 would maintain its velocity. In our case the crew shuts off the power, spaceship is in space and far from all other objects (so no gravity whatsoever) would have no force acting on it. Therefore its velocity would stay the same at 104 m/s

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In comparing the gravitational force and the electrical force between two protons, the electrical force is _____ relative to the
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The electrical force is greater.
I'm not going to look it up and work it out right now,
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8 0
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If you were standing at sea level measuring the air pressure, you would actually be measuring the air's _____.
shusha [124]

Answer:

Weight of air per unit area is pressure due to atmosphere. So here correct answer is Weight

Explanation:

As we know that air pressure is given by

P = \frac{Force}{Area}

now we know that force here due to air is due to the weight of the air

so here in order to calculate the weight we will have

Weight = mg

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here we know that

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now from above formula we have

P = \frac{\rho AH g}{A} = \rho g h

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3 years ago
A box is placed on a table. If an upward pulling force on the box is slightly less than the weight of the box, what will happen
aniked [119]

Answer:

<u><em>A for certain.</em></u>

Explanation:

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5 0
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The airfoil on the Lockheed F-104 straight-wing supersonic fighter is a thin, symmetric airfoil with a thickness ratio of 3.5%.
Lina20 [59]

We have a problem with three different state of the ratio of flow velocity to speed of sound.

That is,

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c_1 = 2\pi \alpha

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So replacing in equation for subsonic state,

c_1 = 2\pi (0.087)=0.548

b) In this situation we have a transonic state, so we need to use the Prandtl-Glauert rule,

c_{t}=\frac{\c{t_0}}{\sqrt{1-M^2_{\infty}}} = \frac{0.548}{\sqrt{1-0.7^2}}=0.767

c) For this case we have a supersonic state, so we use that equation,

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8 0
3 years ago
The temperature of an air parcel and the kinetic energy of an air parcel are ___________ related. this means that as the tempera
torisob [31]

The temperature of an air parcel and the kinetic energy of an air parcel are directly related. this means that as the temperature of the air parcel increases, the kinetic energy increases.

<h3>What is temperature?</h3>

Temperature is the measure of degree of hotness or coldness of a body.

Temperature is also the measure of the average kinetic energy of a system.

When the heat is applied to body, its temperature increases as the body gains heat.

Thus, the temperature of an air parcel and the kinetic energy of an air parcel are directly related. this means that as the temperature of the air parcel increases, the kinetic energy increases.

Learn more about temperature here: brainly.com/question/25677592

#SPJ1

8 0
2 years ago
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