A wind blows at 100 km / h from the east. An aircraft points due north and sets off. In still air its speed is 150 km / h. What will the aircraft's actual velocity be?

Answer:

0.25 cm³.

Explanation:

We shall apply Boyle's law to find the solution . According to it

PV = constant where P is pressure and V is volume of the gas.

P₁ V₁ = P₂V₂

1 x .5 = 2 x V₂

V₂ = 0.25 cm³.

Answer:

5 years

Explanation:

\(\frac{1}{8}(40)\\\\= 5\)

Answer:

I got 6875J

Explanation:

To calculate work done, use the formula;

W = F × d

Where F (force) must be acting on the direction of distance travelled.

Substitute the values:

W = 25 × 275

W = 6875J

I hope this helps! Let me know if I have any misconceptions or miscalculations! :)

The tension in a tow rope,

a ) If it is completely horizontal = 850 N

b ) If it is 40° above the horizontal = 1103.9 N

F = m a

F = Net force

m = Mass

a = Acceleration

m = 1700 kg

a = 0.5 m / s²

∑ \(F_{x}\) = m a

T = m a

T = 1700 * 0.5

T = 850 N

b ) Assuming the tow rope is 40° above the horizontal,

θ = 40°

Resolving the tension force into its horizontal component,

Tx = T cos θ

∑ \(F_{x}\) = m \(a_{x}\)

Tx = 1700 * 0.5

T cos 40° = 850

T = 1103.9 N

Therefore, the tension in a tow rope,

a ) If it is completely horizontal = 850 N

b ) If it is 40° above the horizontal = 1103.9 N

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ita called hematopoiesis

Answer:

F. 0J

Explanation:

At the objects highest point in the trajectory the KE = 0 since this trajectory is completely vertical with no x-component but its PE would be greatest at this point.

KE = (1/2)mv²

KE = 0; because velocity equals 0

PE = m*g*h

PE = 1kg*(9.81m/s^2)*10m

PE = 98.1J

Answer:

1º all

2º 1

3º 2

4º the same

Explanation:

This is due to the fact that occluded fronts combine two cold air masses, which causes one of the cold air masses to go downward.

When a warm air mass is sandwiched between two cold air masses, an occluded front occurs. In an occlusion, the warm front passes over the cold front, which dives beneath it.

In a front is obscured, the warm front is fully supplanted by the cold front, in which the warm air masses have completely disappeared. Furthermore, there are frequent shifts in the various weather producing circumstances because of the cold front's relatively low temperature.

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Answer:

could and largejsjisj and we look like they can get to

The potential energy when a force of 540 n keeps a certain ideal spring stretched a distance of 0.500 m is compressed 7.00 cm is 2.646 J.

To calculate the potential energy of the ideal spring when it is compressed 7.00 cm, we need to first determine the spring constant (k) using Hooke's Law. Hooke's Law states that the force (F) exerted by a spring is proportional to the displacement (x) from its equilibrium position:

F = -kx

Given the force of 540 N and the stretched distance of 0.500 m, we can solve for k:

540 N = k(0.500 m)

k = 1080 N/m

Next, we need to convert the compressed distance from 7.00 cm to meters:

7.00 cm = 0.070 m

Now, we can calculate the potential energy (PE) of the spring when compressed 0.070 m using the following formula:

PE = (1/2)kx²

PE = (1/2)(1080 N/m)(0.070 m)²

PE = 2.646 J

Therefore, the potential energy of the ideal spring when it is compressed 7.00 cm is 2.646 J.

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Answer:

Because they would naturally dye the test strips in the colors violet and red, regardless of their pH values

(would really appreciate the brainliest)

Answer:

they are naturally dark/dying the strips.

Explanation:

Answer:

It would be transformer

Explanation:

hope this helped

Answer:

transformer

Explanation:

got it right

Answer:

The correct option is;

A) It is the only force acting on the block that is causes by microscopic interactions

Explanation:

The force of friction is the force due to the relative motion of two surfaces in the presence of a perpendicular force acting between the surfaces.

The force of friction comes into play from the additional effect of the adhesion that is present between surfaces, the roughness of the surfaces, the contamination or deformation of the surfaces which is generated by the microscopic interactions be between the two surfaces, rather than the applied force.

The characteristics of the friction force, you can find which statements are correct:

   D) It is the sum of all the microscopic contact forces between the bottom of the block and the surface.

The force is an image of the interactions between bodies, these interactions create binding energy that can be formed and broken, the friction force is the macroscopic sum of all these microscopic interactions between two different surfaces.

The magnitude of the friction force depends on the type of each surface, on rough surfaces the interaction area is high, therefore the friction force is high, on smooth surfaces the interaction area is small, therefore the force is small, a way to create superficiality is to place a layer of air between the two surfaces.

Based on these explanations, let's review the different statements:

A) False. The friction forces are caused by interaction, but between two bodies not within the same body, this is what maintains the shape and volume of the body.

B) False. The contact area depends on each surface and therefore each type of material

C) False. The gravitational force is this in the line of interaction between the two bodies, in this case the force is perpendicular to movement, not in the line of interaction.

D) True. It is the sum of the interactions in the contact between the two bodies, it agrees with the explanation above.

Using the characteristics of the friction force, we can find the statements that are correct is:

   D)  It is the sum of all the microscopic contact forces between the bottom of the block and the surface.

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Answer:

The answer is D.

Explanation:

This is because mass always remains constant and weight is dependent on a gravitational pull.

Answer:

Explanation:

The series circuit with two light bulbs will illuminate more than the series with one light bulb because two light bulbs will have more energy as compared to one light bulb.

Answer:

Radiant to Chemical

Explanation:

I think

To find the induced emf in the coil, we can use Faraday's law of electromagnetic induction, which states that the emf induced in a coil is equal to the rate of change of magnetic flux through the coil.

The magnetic flux through the coil can be calculated using the formula:

Φ = B * A * cosθ,

where B is the magnetic field, A is the area of the coil, and θ is the angle between the magnetic field and the normal to the coil.

Given:

B_initial = 0.50 T (initial magnetic field)

B_final = 2.5 T (final magnetic field)

θ = 60° (angle between the magnetic field and vertical)

r = 2.0 cm = 0.02 m (radius of the coil)

N = 100 (number of turns)

Δt = 0.40 s (change in time)

First, let's calculate the change in magnetic flux (ΔΦ):

ΔΦ = B_final * A * cosθ - B_initial * A * cosθ,

The area of the coil (A) can be calculated as the area of a circle:

A = π * r^2,

Now, substitute the values and calculate ΔΦ:

ΔΦ = (2.5 T) * (π * (0.02 m)^2) * cos(60°) - (0.50 T) * (π * (0.02 m)^2) * cos(60°).

Next, we can calculate the average rate of change of magnetic flux (ΔΦ/Δt):

average rate = ΔΦ / Δt.

Finally, we can find the induced emf (ε) by multiplying the average rate of change of magnetic flux by the number of turns in the coil:

ε = N * (ΔΦ/Δt).

Now, substitute the values and calculate the induced emf:

ε = 100 * ((2.5 T) * (π * (0.02 m)^2) * cos(60°) - (0.50 T) * (π * (0.02 m)^2) * cos(60°)) / (0.40 s).

Simplifying the expression will give us the final numerical value of the induced emf in the coil.

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Earth's innermost core is solid, not liquid because the pressure is too high for the material to be in a liquid state. The correct answer is d.

Earth's innermost core is solid, not liquid, primarily due to the high-pressure conditions present at the core's depths.

The pressure in the Earth's core is estimated to be about 3.6 million times greater than atmospheric pressure.

At such immense pressures, the material in the inner core, which is primarily composed of iron and nickel, is compressed to such an extent that it remains in a solid state despite high temperatures.

Even though the core's temperature is believed to exceed the melting point of iron, which is around 1538 degrees Celsius (2800 degrees Fahrenheit), the tremendous pressure prevents the iron from transitioning into a liquid state.

The intense pressure counteracts the tendency of the material to melt and maintains its solid form.

Therefore, the correct option is d.

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The Earth's innermost core is solid because of the high pressure at the center of the Earth. Despite the high temperature, the immense pressure prevents the iron from melting, keeping it in a solid state.

The Earth's innermost core is solid because of the high pressure at the center of the Earth. When the Earth was forming, the heavy, solid material sank to the bottom due to a process called differentiation. This caused the solid material, primarily composed of iron and nickel, to accumulate in the innermost core.

The temperature at the center of the Earth is extremely high, reaching up to 5700 degrees Celsius. However, despite the high temperature, the immense pressure exerted on the inner core by the weight of the overlying layers of the Earth prevents the iron from melting. The pressure at the center of the Earth is estimated to be about 3.6 million times greater than atmospheric pressure.

This high pressure keeps the iron in the inner core in a solid state, even at such high temperatures. Therefore, the Earth's innermost core is solid, not liquid.

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Answer:

4. radiation

5. ultraviolet radiation

Answer:

inertia

Explanation:

Answer:

Sh = Vh t         horizontal distance traveled

Sh = 10.2 m/s * 3.7 s = 37.74 m

Answer:

monochromator

Explanation:

The main difference is that subcultures are a subset of the dominant culture, while countercultures seek to challenge and change the dominant culture.

Subcultures are groups of people who share certain values, norms, and behaviors that differ from the mainstream culture but still coexist within it.

Subcultures may have unique styles of dress, music preferences, or recreational activities, but they do not necessarily challenge the dominant culture.

Countercultures, on the other hand, are groups that actively resist or oppose the values and norms of the dominant culture. They seek to create alternative ways of life, often promoting radical social or political change.

Countercultures may be characterized by extreme beliefs or practices that are intentionally provocative, such as punk rock or anti-establishment movements.

Both subcultures and countercultures are groups of people with shared identities, beliefs, and practices.

Subcultures may arise from shared interests or experiences, while countercultures often form in response to social or political issues.

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According to the Statement it always was receding at its current rate, that galaxy was just next to our own galaxy, moving at 8000 km/s.

Astronomy The Universe The Nebula Galaxy. Did you know that, in conjunction to our light, the Sun, the Milky Way Cluster, a large expanse of space, includes millions and billions of other stars? Its Milky Way is distinguished by a phenomenal number of stars, infinitesimal particles, and gas.

Since V = H x d, the velocity of a galaxy at a distance of 400 x 10⁶ light-years = 8000 km/s

For H = 20 km/s per million light-years. The time required to travel

4 x 10⁸ light - years at 8000 km/s is given by :

T = (4x10⁸ light - years ) (9.46 x 10¹² km /light-year) ÷ 8 x 10³

= 4.7 x 10¹⁷ = 15 billion year

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Complete question : Consider a galaxy at a distance of 400 million light-years receding from us at a velocity, v. If the Hubble constant is 20 km/s per million light-years, what is its velocity? How long ago was that galaxy right next door to our own Galaxy if it has always been receding at its present rate?

Answer: this is for you telling me what he did

Explanation:  it D

At 12,000 feet above sea level, the temperature is 38°F if the air temperatures at sea level is 80°F.

Daniel Gabriel Fahrenheit, a scientist, initially suggested the temperature measure known as the Fahrenheit scale in 1724. (1686–1736).

The sign for the unit is indeed the letter °F, which stands for degrees Fahrenheit. There are several stories about how he first developed his scale, but according to the first publication, the lower defining point, 0 °F, was chosen as the freezing point of a brine solution that was formed by mixing water, snow, and ammonium chloride (a salt).

His best guess for the normal temperature of a person, which was initially put at 90 °F and later adjusted to 96 °F (around 2.6 °F),The other limit established was lower than the actual value (due to a subsequent revision of the scale).

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The life expectancy of the given stars are:a) 0.2-solar mass, 0.01-solar luminosity red dwarf: 10 trillion yearsb) 3-solar mass, 30-solar luminosity star: 10 million yearsc) 10-solar mass, 1000-solar luminosity star: 10 million years.

The life expectancy of a star is determined by its mass and luminosity. The more massive and luminous the star is, the shorter its life expectancy is. Hence, using this information, we can estimate the life expectancy of the following stars:a) 0.2-solar mass, 0.01-solar luminosity red dwarfRed dwarfs are known to have the longest life expectancies among all types of stars. They can live for trillions of years.

Hence, a 0.2-solar mass, 0.01-solar luminosity red dwarf is expected to have a much longer life expectancy than the Sun. It could live for up to 10 trillion years or more.b) 3-solar mass, 30-solar luminosity starA 3-solar mass, 30-solar luminosity star is much more massive and luminous than the Sun. As a result, it will have a much shorter life expectancy than the Sun.

Based on its mass and luminosity, it is estimated to have a lifetime of around 10 million years.c) 10-solar mass, 1000-solar luminosity starA 10-solar mass, 1000-solar luminosity star is extremely massive and luminous. It will burn through its fuel much faster than the Sun, resulting in a much shorter life expectancy. Based on its mass and luminosity, it is estimated to have a lifetime of only around 10 million years as well.

Therefore, the life expectancy of the given stars are:a) 0.2-solar mass, 0.01-solar luminosity red dwarf: 10 trillion yearsb) 3-solar mass, 30-solar luminosity star: 10 million yearsc) 10-solar mass, 1000-solar luminosity star: 10 million years.

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