Calculate the ratio of the drag force on a jet flying at 784 km/h at an altitude of 8.6 km to the drag force on a prop-driven transport flying at half that speed and altitude. The density of air is 0.46 kg/m3 at 8.6 km and 0.71 kg/m3 at 4.3 km. Assume that the airplanes have the same effective cross-sectional area and drag coefficient C.

Answer:

4.5 because just do the math and its 4.5

The  correct  processes based on the type of energy transfer they involve can be linked as ;

Conduction, radiation, and convection are the three different ways that thermal energy is transferred. Only fluids experience the cyclical process of convection.

The total amount of energy in the universe has never changed and will never change because it cannot be created or destroyed.

Learn more about energy transfer at;

https://brainly.com/question/31337424

#SPJ1

Answer:

i) Power = Force * Velocity = 1100 * 15 = 16500 W = 16.5 kW(ii)  Find the value of k first: F = 400 + k(15^2)                                              k = 28/9    F = 400 +(28/9)(30^2) = 320

Explanation:

The three English documents that influenced the Bill of Rights were the Magna Carta, the English Bill of Rights, and the Petition of Right.

The Magna Carta was a historic document signed in 1215, which established the principle that even the king was subject to the law and outlined certain rights and liberties of the English people. The English Bill of Rights, enacted in 1689, limited power of monarchy, protected individual rights, and laid foundation for a constitutional monarchy in England. The Petition of Right, issued in 1628, challenged the absolute authority of the king, asserting the rights of Parliament and demanding protection of civil liberties like due process, habeas corpus, and the prohibition of cruel and unusual punishment. These three documents served as vital inspirational source of inspiration and provided framework for drafting of the Bill of Rights in the United States, guaranteeing fundamental rights and freedoms to citizens.

To know more about constitutional monarchy, visit:

https://brainly.com/question/18228934

#SPJ111

Answer:

No

Explanation:

She will not be able to measure the length of her window accurately due to instrumental error from her choice of instrument. The elastic nature of her tape would alter the measurement because it will stretch as she is taking her readings, thus reducing the true measurement of the length of her window.

To measure the length of her window, she could use an inelastic tape rule or a metre rule. These instruments would eliminate instrumental error.

Answer:

Kaboom daddy

Explanation:

Answer:

Crazy

Explanation:

The total mechanical energy of the bicyclist is 1400 J, obtained by adding her potential energy of 720 J and kinetic energy of 680 J. The correct answer is option B.

For more questions on mechanical energy

https://brainly.com/question/28154924

#SPJ8

Answer:

I don't understand the question

Explanation:

The central region of the Milky Way, specifically the galactic bulge and halo, contains mostly old (Population II) stars and globular clusters. Population II stars are older, metal-poor stars that formed early in the universe's history, primarily consisting of hydrogen and helium.

These stars have lower masses and are typically found in globular clusters, which are densely packed, spherical collections of stars that orbit the galactic center.

The galactic bulge is the central, elongated region of the Milky Way, characterized by its high concentration of stars, gas, and dust. Population II stars are more abundant in this area due to their age and the early formation of the Milky Way. Similarly, globular clusters are often found in the bulge due to their strong gravitational pull towards the center of the galaxy.

In contrast, the galactic halo is the outermost region of the Milky Way, encompassing both the galactic disk and the bulge. While the halo is relatively sparse compared to the bulge, it is still home to a significant number of Population II stars and globular clusters. These ancient stars and clusters in the halo provide crucial insights into the formation and evolution of our galaxy.

In summary, the central region of the Milky Way, including the galactic bulge and halo, contains a majority of the old (Population II) stars and globular clusters, reflecting the early history and development of our galaxy.

To learn more about Milky Way : brainly.com/question/2806083

#SPJ11

The volume of a material is directly related to its temperature in that thermal expansion occurs with an increase in temperature while thermal contraction occurs with a decrease in temperature.

The effect of heat, when applied to a substance, is that it may result in thermal expansion or thermal contraction when heat is removed

Thermal expansion refers to the increase in the size of a material when heat is applied to the substance resulting in temperature increase. Thermal expansion may be an increase in volume, area, or length.

Thermal contraction refers to the decrease in the size of a material when heat is removed from the substance. Thermal expansion may be a decrease in volume, area, or length.

Learn more about thermal expansion and thermal contraction at: https://brainly.com/question/1166774

#SPJ1

The basic requirement for a fusion reaction is a combination of high temperature and pressure, along with a sufficient amount of fuel.

In fusion, the aim is to merge light atomic nuclei, typically isotopes of hydrogen, to form a heavier nucleus and release a tremendous amount of energy. Achieving the necessary conditions involves confining the fuel, such as deuterium and tritium, using powerful magnetic fields or intense laser beams.

These confinement methods ensure that the fuel is heated to millions of degrees, creating a plasma state where atomic collisions occur at high velocities. The high temperature and pressure cause the atomic nuclei to overcome their mutual electrostatic repulsion and merge, releasing energy in the form of light and heat.

Properly sustaining and controlling these conditions are key to realizing controlled fusion reactions, which hold immense potential as a clean and virtually limitless energy source.

To know more about fusion reaction refer here

https://brainly.com/question/28020465#

#SPJ11

Answer:

D. Graph A

Explanation:

Ohm's law states that V = I*R

So rearrange the equation by dividing the Volts by the amps to give you resistance.

R = 12/4

R = 3 ohm

The line in graph of voltage versus current, which represents a 3.0 ohm

resistor is line A. The correct option is D.

The current is the stream of charges which flow inside the conductors when connected across the end of voltage.

Given,  the graph of voltage versus current is given.

From the graph, I = 4A and V= 12 V

From the Ohm's law, V =IR

Resistance, R = V/I

By substituting the values, we get

R = 12/4

R= 3 ohms

The resistance of the circuit, 3 ohm is represented by the line A on the graph.

Thus, the correct option is D.

Learn more about current.

brainly.com/question/10677063

#SPJ2

Answer:

Explanation:

Work = Force times displacement. Therefore,

W = 3150(75.5) so

W = 238000 N*m

To determine the minimum constant acceleration required for the aircraft to become airborne after a takeoff run of 204 m, we can use the following kinematic equation:
v^2 = u^2 +  as

Where:v is the final velocity (liftoff speed) in m/s.u is the initial velocity (zero in this case) in m/s.a is the acceleration in m/s^2.s is the distance traveled in meters.First, we need to convert the liftoff speed from km/h to m/s:
129 km/h * (1000 m / 1 km) * (1 h / 3600 s) = 35.83 m/s
Now, we can rearrange the kinematic equation to solve for the acceleration:
a = (v^2 - u^2) / (2s)a = (35.83 m/s)^2 / (2 * 204 m)a ≈ 31.51 m/s^2
Therefore, the minimum constant acceleration required for the aircraft to become airborne after a takeoff run of 204 m is approximately 31.51 m/s^2.

To know more about velocity, click here https://brainly.com/question/30559316

#SPJ11

Producers are responsible for making all types of matter in living and non-living things in an ecosystem.

An ecosystem may be defined as a place or area where members of different species live together and interact with one another for the purpose of food, shelter, and space.

Producers are organisms which always found at the bottom of each trophic level of an ecosystem. These organisms synthesize their own food and energy from carbon dioxide in presence of sunlight.

After synthesizing energy, they transform their energy to higher trophic levels. Apart from this, several biotic and abiotic factors are also responsible for making up the type of matter in living and nonliving things in an ecosystem.

Therefore, producers are responsible for making all types of matter in living and non-living things in an ecosystem.

To learn more about the Ecosystem, refer to the link:

https://brainly.com/question/26551655

#SPJ2

Answer:

A coil having 45 loops

Explanation:

The strength of an electromagnet is proportional to the number of loops. So, when we have more loops, we will get mor strength. It means that the coil that will produce a magnetic field with the maximum strenght is a coil having 45 loops because 45 is the greatest number in the list.

The planet that moves the fastest in a solar system is the planet nearest the Sun.

The correct option is C. The Planet Nearest The Sun.

What is a Solar System?

A solar system is a collection of planets, moons, comets, asteroids, and other objects that revolve around a single star. The sun is the center of our solar system, and it includes all of the matter and energy that orbits around it, including Earth and all the other planets.

Sun, the star around which Earth and the other planets of the solar system revolve, has a huge gravitational field. Planets move around the sun in a fixed orbit at varying speeds, depending on their distance from the sun. Because planets are closer to the sun, their gravitational pull is greater, resulting in a faster orbital speed for them.

The planet nearest the sun in the solar system is Mercury. Due to its proximity to the sun, it orbits at a speed of around 48 km/s, making it the fastest planet in the solar system, with an orbital period of 88 Earth days.

learn more about solar system on

https://brainly.com/question/2564537

#SPJ11

To determine the position u of the mass at any time t, we can use the equation of motion for a mass-spring system without damping:n m * u''(t) + k * u(t) = 0

m = 2 lb / (32.2 ft/s^2) = 0.062 lb·s^2/ft

The spring constant k can be determined using Hooke's law:

k = F / x

where F is the force exerted by the mass and x is the displacement. In this case, the force F is the weight of the mass, and the displacement x is 6 in:

k = (2 lb) / (6 in) = (2 lb) / (6 in) * (1 ft/12 in) = 0.111 lb/ft

The equation of motion now becomes:

0.062 * u''(t) + 0.111 * u(t) = 0

To solve this second-order linear homogeneous differential equation, we assume a solution of the form u(t) = A * cos(ωt + φ).

Substituting this assumed solution into the equation of motion, we get:

-0.062 * A * ω^2 * cos(ωt + φ) + 0.111 * A * cos(ωt + φ) = 0

-0.062 * ω^2 + 0.111 = 0

Solving for ω, we get:

ω = sqrt(0.111 / 0.062) = 2.258 rad/s

From ω, we can determine the frequency f and period T:

f = ω / (2π) = 2.258 / (2π) ≈ 0.359 Hz

T = 1 / f ≈ 2.786 s

The amplitude A is determined by the initial conditions. When the mass is pulled down an additional 3 in (0.25 ft) and released, it reaches its maximum displacement, so A = 0.25 ft.

Therefore, the position u of the mass at any time t is given by:

u(t) = 0.25 * cos(2.258t)

To draw the graph of u(t), plot the position u on the y-axis and time t on the x-axis, using the equation u(t) = 0.25 * cos(2.258t). The graph will be a cosine wave with an amplitude of 0.25 ft.

Learn more about mass here:

https://brainly.com/question/28021242

#SPJ11

If you have 200 lbs of coal in your shed and you burn 1 lb a day, it will need 200 days for last.

Coal is a sedimentary rock formed from the remains of organic and combustible deposits. There are a number of benefits of coal in everyday life.

Based on research by geologists, coal was formed around 340 million years ago. Coal itself comes from the remains of plants that have decayed hundreds of millions of years ago.

It takes a very long time for coal to form again. Therefore, coal is a type of non-renewable natural resource that makes it relatively expensive.

The main benefit or use of coal is as fuel. The heat produced by coal is very high and can be converted into other energy. Therefore, coal is often used in life.

Learn more about coal at

https://brainly.com/question/12981477.

#SPJ4

Answer:

Approximately \(2.69\; {\rm A}\).

Explanation:

Ensure that all values are measured in standard units. Charge should be measured in coulombs, while time should be measured in seconds:

\(\begin{aligned}t &= 3.0\; {\rm hr} \times \frac{3600\; {\rm s}}{1\; {\rm hr}} = 10800\; {\rm s}\end{aligned}\).

Electric current \(I\) is the rate of flow of electric charge.

In order to find the electric current, divide electric charge \(q\) by the time \(t\) required to transfer these charge. If charge \(q\!\) is measured in coulombs and time \(t\!\) is measured in seconds, the unit of current \(I\)would be amperes:

\(\begin{aligned}I & = \frac{q}{t} \\ &= \frac{29000\; {\rm C}}{10800\; {\rm s}} \approx 2.69\; {\rm A}\end{aligned}\).

Answer:

Its not getting as hot because water and soap can act as a lubricant and it would not heat up easily because of the soapy water.

Answer:

there is less friction when your hands are soapy

Explanation:

Answer:

i got 6

Explanation:lmk if i’m wrong

Answer:

2.5m/s²

Explanation:

Given the following:

Initial velocity u = 0m/s

Final velocity v = 20m/s

Time t = 4s

Required

average acceleration over this time in time interval​

Using the equation of motion

v = u + at

10 = 0 + a(4)

10 = 4a

a = 10/4

a = 2.5m/s²

Hence its average acceleration over this time in time interval​ is 2.5m/s²

Answer:

(a) The wavelength of the x-ray used to observe the first-order diffraction maximum is approximately 0.413 nm.

(b) The maximum number of orders that can be observed for this crystal at this wavelength is 1.

Explanation:

(a) To determine the wavelength of the x-ray used to observe the first-order diffraction maximum, we can use the Bragg's law, which relates the wavelength of the incident x-ray, the spacing between planes of atoms, and the angle of diffraction.

Bragg's law is given by:

nλ = 2d sinθ

Where:

n is the order of diffraction (in this case, n = 1 for the first-order diffraction)

λ is the wavelength of the x-ray

d is the spacing between planes of atoms

θ is the angle of diffraction (given as 12.6°)

Rearranging the equation to solve for λ, we have:

λ = (2d sinθ) / n

Substituting the given values:

d = 0.250 nm = 0.250 × 10^(-9) m

θ = 12.6° = 12.6 × π / 180 radians

n = 1

λ = (2 * 0.250 × 10^(-9) m * sin(12.6 × π / 180)) / 1

λ ≈ 0.413 × 10^(-9) m

(b) To determine the number of diffraction orders that can be observed, we need to consider the condition for constructive interference. For a given crystal, the number of orders that can be observed depends on the maximum value of n, which is determined by the crystal's characteristics and the wavelength of the incident x-ray.

In general, the number of orders that can be observed is given by:

n_max = 2d / λ

λ = 2 * 0.250 × 10^(-9) m * sin(12.6°)

λ ≈ 0.087 × 10^(-9) m

To know more about first-order diffraction maximum here: https://brainly.com/question/14703717

#SPJ11

The most appropriate way of drawing the field lines is to draw it away from the positive charge and towards the negative charge.

This is referred to as the type of lines which provide more information about the direction and strength of an electric field and is based on different types of factors. It usually starts from a positive charge and ends at a negative charge.

This therefore means that the most appropriate to draw the field lines away from the positive charge and towards the negative charge thereby making it the correct choice.

Read more about Electric field lines here https://brainly.com/question/14372859

#SPJ1

Answer:

As newton's 1st Law states that " A body tends to be at rest or in motion until an external force is  applied "

Explanation:

so football will remains at rest until you kick it or stop it with your hands

The structure of the carbohydrate shown indicates the presence of an O-glycosidic linkage. The specific type of O-glycosidic linkage is a 1,4-N-glycosidic linkage, where the bond is formed between the anomeric carbon (C1) and a hydroxyl group (OH) on another molecule.

This type of linkage is commonly found in carbohydrates. Carbohydrates are organic compounds composed of carbon, hydrogen, and oxygen atoms. They can exist as monosaccharides (simple sugars), disaccharides (two monosaccharides linked together), or polysaccharides (multiple monosaccharides linked together).

The given structure of the carbohydrate shows multiple hydroxyl groups (OH) attached to carbon atoms (C) within the molecule. The presence of these hydroxyl groups indicates the potential for glycosidic linkages, which are covalent bonds formed between the hydroxyl group of one sugar molecule and the anomeric carbon (C1) of another sugar molecule.

In this case, the specific type of glycosidic linkage present is an O-glycosidic linkage. This means that the bond is formed between the anomeric carbon (C1) of one sugar molecule and a hydroxyl group (OH) on another molecule. The numbering system used in carbohydrate structures denotes the position of the carbon atoms.

The O-glycosidic linkage in question is a 1,4-N-glycosidic linkage. The "1" refers to the anomeric carbon (C1) of the sugar molecule, and the "4" indicates that the bond is formed with the hydroxyl group on the fourth carbon (C4) of another sugar molecule. The "N" indicates that the linkage is formed with a hydroxyl group present in the nitrogenous component of the carbohydrate.

To learn more about linkage click here brainly.com/question/32391189

#SPJ11

The required kinetic energy of the rifle when speed and mass of bullet along with mass of rifle are specified is calculated to be 31.505 J.

From the principle of momentum conservation, the bullet and recoil are in a straight line. So, the momentum analysis is unidimensional. As the initial momentum is equal to zero as the masses are at rest, we have the final momentum equals to zero.

0 = Pf = mb vb + mr vr

where,

mb is mass of bullet (0.0250 kg)

vb is velocity of the bullet (550 m/s)

mr is the mass of the rifle (3 kg)

vr is the velocity of the rifle

mb vb + mr vr = 0

mr vr = - (mb vb)

vr = - (mb vb)/mr = -(0.0250 × 550)/3 = 4.583 m/s

Now, kinetic energy of rifle can be calculated.

K.E = 1/2 mr vr² = 1/2 × 3 × 4.583² = 31.505 J

Thus, the kinetic energy is calculated as 31.505 J.

To know more about kinetic energy:

https://brainly.com/question/14151617

#SPJ4