A transport plane takes off from a level landing field with two gliders in tow, one behind the other. The mass of each glider is 700 kg, and the total resistance (air drag plus friction with the runway) on each may be assumed constant and equal to 2,500 N. The tension in the tow rope between the transport plane and the first glider is not to exceed 12,000 N.
What is the tension in the tow rope between the two gliders while they are accelerating for the takeoff?

The feature that is true of both solar and wind power is (b) Both power sources produce no greenhouse gas emissions during normal operation.

This makes them a more environmentally friendly alternative to traditional fossil fuels, which emit carbon dioxide (CO2) and other harmful gases during combustion.

However, the other options are not completely accurate. Solar and wind power can be intermittent, but this does not necessarily mean that they require a backup energy source. Energy storage technologies, such as batteries or pumped hydro storage, can be used to store excess energy generated during times of high production and release it during times of low production.

Furthermore, while solar and wind power currently supply a small fraction of global energy demand, it is important to note that their usage is increasing rapidly. In fact, renewable energy sources, including solar and wind power, are projected to be the fastest-growing energy source over the next few decades.

In conclusion, solar and wind power's most significant shared feature is their ability to operate without producing greenhouse gas emissions. While they do have other characteristics that are sometimes associated with them, these features are not always completely accurate and may not apply in every circumstance.

for more such questions on power

https://brainly.com/question/1634438

#SPJ8

Answer:

It's A

Explanation:

Because I know it is

The record in the last row should be 2LiCl + 3O2.

A chemical reaction equation has two parts;

The interaction between the atoms of the reactants lead to rearrangement hence products are formed.

For the reaction, the record in the last row should be 2LiCl + 3O2.

Learn more about chemical reaction:https://brainly.com/question/6876669

The values of all sub-parts have been obtained.

(1).  The maximum factored load the beam can withstand is 45.2 kN/m.

(2).  The moment resistance of the cross-section is 291735.65 Nm.

(3).  The factored moment demand is 27939.6 Nm

1) To draw the governing shear and bending moment diagram for the factored load, we need to first calculate the maximum factored load that the beam can withstand.

The maximum factored load on the beam is given by:

Dead Load = 20 kN/m + 15 kN

                   = 35 kN/m.

Live Load = 2 kN/m + 1 kN

                = 3 kN/m.

Total Factored Load = 1.2 x Dead Load + 1.6 x Live Load

                                  = 1.2 x 35 kN/m + 1.6 x 3 kN/m

                                  = 45.2 kN/m.

The maximum factored load the beam can withstand is 45.2 kN/m.

The shear force and bending moment diagrams for the given factored load can be obtained as shown below:

Shear Force Diagram:

Bending Moment Diagram:

2) To calculate the moment resistance of the cross-section, we can use the formula:

MR = σst A'(d - a/2) + 0.85f'c A''(d - a/2)

Where, σst = yield stress of tension steel [σst = fy / γst],

γst = safety factor for tension steel [γst = 1.15A']

A' = area of tension steel, [A'' = b(d - a)].

Where,

b = width of the beam [b = 600 mm],  

d = total height of the beam [d= 1000 mm],

a = effective depth of tension steel [a = 920 mm]

f'c = compressive strength of concrete [f'c = 25 MPa],

MR = σst A'(d - a/2) + 0.85f'c A''(d - a/2)

MR = (400 / 1.15) x 10 x (1000 - 920/2) + 0.85 x 25 x 590 x (1000 - 920/2)

MR = 291735.65 Nm

The moment resistance of the cross-section is 291735.65 Nm.

3) To check if this cross-section is adequately designed to resist the factored bending moment (LRFD), we need to calculate the factored moment demand and compare it with the moment resistance.

The factored moment demand is given by:

MF = ϕ x Mu

Where,ϕ = resistance factor = 0.9, Mu = factored bending moment

Mu = 1.2 x Dead Load x L2 / 8 + 1.6 x Live Load x L2 / 8 + 1.2 x (Dead Load + Live Load) x L2 / 2

   = 1.2 x 35 x 152 / 8 + 1.6 x 3 x 152 / 8 + 1.2 x 38 x 152 / 2

   = 31044 Nm

MF = ϕ x Mu

     = 0.9 x 31044

    = 27939.6 Nm

The factored moment demand is 27939.6 Nm, which is less than the moment resistance of the cross-section, i.e., 291735.65 Nm.

Therefore, this cross-section is adequately designed to resist the factored bending moment.

To learn more about factored bending moment demand from the given link.

https://brainly.com/question/31385809

#SPJ11

The jogger's K.E from  forward motion is 270 joules.

The energy of an object as a result of its motion is called Kinetic energy. If we have to accelerate an object, then we have to apply a force. Applying a force requires that some work has to be done. After work has been done and energy has been transferred to the object the the object will move with a new constant speed.

The relationship between potential energy and kinetic energy is that potential energy can be transformed into kinetic energy whereas potential energy is position relative. We can say that it changes depending on the height of the object and the mass.

Given, mass is 60.0 kg

Given, speed is 3.0 m/s.

As we know, KE = 1/2 m v^2

=1/2* 60 * 3^2

= 270 Joules

To know more about Kinetic energy, refer

https://brainly.com/question/8101588

#SPJ4

Magnetic objects are either drawn to or pushed away by magnetism. When two magnets with the same poles are positioned close to one another, they push apart and repel. When two dissimilar poles are positioned close to one another, they pull and attract to one another.

A soft iron core makes up an electromagnet. You may alter the magnetic field's strength. Simply cutting off the electricity will demagnetize an electromagnet. Reversing the polarity is possible.

A unique class of magnets called electromagnets has the following characteristics: By switching the direction of the current flow, the polarity of the magnets may be changed. They function as magnets when an electric current is passing through them; they are transient magnets that may be turned on and off.

Learn more about electromagnet refer

https://brainly.com/question/12555869

#SPJ4

Answer:

Determine the initial horizontal and vertical velocity for a dart launched with a ... an angle of 30 degrees. Vi=4m/s Vix Vicoso Mas cos 30 = = 30°. Viy=visine ... What is the resultant direction (angle) of the cannon ball (relative to a fixed frame)? ... Which of the following launch angles would result in the greatest time of flight iſ the.

Explanation:

I hope it helped

If the angle of elevation of the cannon is decreased from 35 to 30 degrees, the vertical component of the ball's initial velocity will  decreases.

velocity can be the rate of change of the position of the  object with respect to  reference is  complicated but velocity is basically speeding in a specific direction.

Velocity , vector quantity means both magnitude and direction are needed to determine velocity. The SI unit of velocity is represented as meter per second (ms-1) and if  magnitude or the direction of velocity of a body changes, then it will be said to be accelerated.

Speed and velocity are the two closely related term and can be a little confusing but the major difference between speed and velocity is that speed gives us an idea of the rate of faster movement of an object where as  velocity  speed up as well as   tells us the direction the body

For more details velocity,  visit

brainly.com/question/28738284

#SPJ3

The force constant of the spring is 200.696 N/m & The height the object achieves when the spring releases its energy is 2.5087 m

The spring constant is the force needed to stretch or compress a spring, divided by the compressive or expansive distance. It's used to determine stability or instability in the spring, and therefore the system it's intended for. we know,

F = kx

Therefore,

k = F/x

We also know that the force being exerted on the spring is equal to the mass of the object. Hence, F = mg = 5.13 * 9.8 N = 50.174 N and we know compression due to the mass is 0.25m. Therefore,

K = 50.174/0.25 N/m

K = 200.696 N/m

Therefore, The Spring Constant is 200.696 N/m

On release, the spring potential energy gets converted to kinetic energy. Hence, on release, the height attained by the object is given by:

h = \(1/2 kx^{2}\)

We know that k=200.696 N/m and x=0.25 m. Therefore the height is:

h = \(1/2 (200.696 N/m)(0.25 m)^{2}\)

h = 2.5087 m

Therefore, the force constant of the spring is 200.696 N/m & The height the object achieves when the spring releases its energy is 2.5087 m

To learn more about Spring Constant :

https://brainly.com/question/1968517

A. Objects that are very hot are going to tend to glow blue and in some cases white.

Objects that are very hot, such as stars or flames, tend to glow in various colors depending on their temperature.

At lower temperatures, they emit mainly red light, and as the temperature increases, they emit more orange, yellow, and white light. At the highest temperatures, they emit blue and even ultraviolet light.

As the temperature increases, the object begins to emit more orange, yellow, and white light as shorter wavelengths and higher frequencies of light are emitted.

At the highest temperatures, such as those found in stars, the object emits blue and even ultraviolet light. This can be seen in the concept of blackbody radiation, which explains how objects emit electromagnetic radiation based on their temperature.

So, the color of light emitted by a hot object depends on its temperature.

So, it is correct to say that objects that are very hot tend to glow blue and in some cases white.

To learn more about wavelengths, refer below:

https://brainly.com/question/31143857

#SPJ11

17.01 m/s is the car’s velocity .

s=ut+at²/2

s-at²/2=ut

u=s-at²/2÷t

u=312/18.4

u=17.01 m/s

"The rate at which an item changes its location" is described by a vector number called velocity. Imagine someone walking swiftly, one step forward, one step back, and starting each step from the same location. Velocity is a vector quantity. Therefore, velocity is cognizant of direction. The direction must be taken into account when determining an object's velocity. A velocity of 55 miles per hour is not adequate information. It is necessary to account for the direction in order to accurately describe the object's velocity. Simply put, the direction of the velocity vector represents the motion of the object.

To know more about  velocity visit : brainly.com/question/16379705

#SPJ9

Answer:

4,275

Explanation:

formula:1/2mv square

1/2×190×45=4,275

The equation that relates the speed of light to other fundamental quantities is c = λν.

In the equation c = λν, c represents the speed of light, λ represents the wavelength of the light, and ν represents the frequency of the light. This equation is derived from the fundamental properties of electromagnetic waves. The speed of light in a vacuum is constant and is approximately 299,792,458 meters per second (m/s). The wavelength of light is the distance between two consecutive peaks or troughs of the wave, measured in meters. The frequency of light is the number of wave cycles that pass a given point per second, measured in hertz. The equation states that the speed of light is equal to the product of its wavelength and frequency. It is a fundamental relationship that helps describe the behavior and properties of electromagnetic radiation.

To learn more about speed, Click here: brainly.com/question/32673092?

#SPJ11

Answer:

Mars is an opportunity for humans to carry forward the light of consciousness, plus it is the closest planet like earth, it has land humans can land on and although its small, theres still water

Answer:

A and C

Explanation:

The easiest way to solve this is by drawing a new triangle, one where one leg is clearly longer than the other.  This way, it is easy to see which angles match.

Or, using geometry, we can show that C = θ since they are alternate interior angles.  Since C is complementary to the angle between the rays, and A is also complementary to the angle between the rays, then A = C, so A = θ.

In summary, the amount of time a low mass star will stay on the main sequence is determined by its mass, radius, and temperature. Typically, a low mass star will remain on the main sequence for billions of years.

A low mass star is a star that is small in size, mass, and brightness. It is typically around 0.5-2 solar masses and is relatively cool compared to other types of stars. On the main sequence, which is the period when the star is fusing hydrogen into helium in its core, a low mass star can remain for a very long time. The length of time that a low mass star remains on the main sequence is determined by the rate at which it fuses hydrogen into helium in its core. This rate is determined by the star's mass, radius, and temperature. Generally, the lower the mass of the star, the longer it will remain on the main sequence. For example, a star with a mass of 0.5 solar masses will remain on the main sequence for around 20-30 billion years, while a star with a mass of 1 solar mass will remain on the main sequence for around 10 billion years.

to know more about low mass star visit:

https://brainly.com/question/30706375

#SPJ11

Resistance in a circuit is equal to voltage divided by current (R=V/I).

The resistance of an electrical circuit refers to the difficulty with which an electric current flows through it. It is symbolized by the letter R and is expressed in ohms (Ω). A resistor is an electrical component that is used to increase resistance in a circuit, while a conductor is an electrical component that is used to reduce resistance in a circuit. Ohm's law, which states that the current flowing through a conductor is directly proportional to the voltage across it, is one of the fundamental laws of electricity.

Ohm's law formula is I = V/R, which states that the current flowing through a conductor is directly proportional to the voltage across it, and inversely proportional to the resistance of the conductor. Ohm's law is an essential tool for electrical engineers and technicians, and it is used to calculate the voltage, current, and resistance of circuits.

Know more about resistance here,

https://brainly.com/question/29427458

#SPJ11

The total kinetic energy before the collision, the spring potential energy, and the kinetic energy after the collision would be equal.

When comparing the kinetic energy before the collision, the spring potential energy, and the kinetic energy after the collision, a long explanation is necessary to make a proper comparison. Let's explore the different energies involved and the expected outcomes:Kinetic energy before the collision Before the collision, the system has a total kinetic energy of 1/2 mv², where m is the mass of the object and v is its velocity.

This energy is purely kinetic energy because the object is moving. So the total energy before the collision is only kinetic energy.Spring potential energyThe spring potential energy is the energy stored in a spring when it is stretched or compressed. It is equal to 1/2 kx², where k is the spring constant and x is the displacement from the equilibrium position. When the spring is compressed or stretched, it stores energy in the form of potential energy, which can be used to do work.

To know more about kinetic energy visit:-

https://brainly.com/question/999862

#SPJ11

Answer:

ITS 20

Explanation:

Answer:

Approximately \(21.6\; {\rm m\cdot s^{-1}}\), assuming that the coefficient of kinetic friction between the tires and the ground stays the same.

Explanation:

Let \(\mu_{k}\) denote the coefficient of kinetic friction between the tires and the ground.

Let \(m\) denote the mass of the truck. Let \(g\) denote the gravitational field strength. The weight of this truck would be \(m\, g\). Since the curve is flat, the magnitude of the normal force \(F_\text{normal}\) between the truck and the ground would also be \(m\, g\!\).

Let \(v = 32.5\; {\rm m\cdot s^{-1}}\) denote the speed at which the truck goes around the curve with a radius of \(150\; {\rm m}\). The (horizontal) centripetal acceleration of the truck would be:

\(\displaystyle a = \frac{v^{2}}{r}\).

The horizontal net force on the truck (of mass \(m\)) would need to be exactly:

\(\displaystyle F_\text{net} = m\, a = \frac{m\, v^{2}}{r}\).

The friction between the tires of the truck and the ground is the only horizontal force on the truck. Thus, this friction would need to supply the entirety of this horizontal net force:

\(\displaystyle F_\text{friction} = F_\text{net} = \frac{m\, v^{2}}{r}\).

Notice that increasing \(v\) would require an increase in the kinetic friction between the truck, \(F_\text{friction}\). However, since \(F_\text{friction}\!\) is at most \(\mu_{k}\, F_\text{normal}\) (which is equal to \(\mu_{k}\, m\, g\)):

\(\begin{aligned}\frac{m\, v^{2}}{r} &= F_\text{friction} \\ & \le \mu_{k}\, F_\text{normal} \\ &= \mu_{k}\, m\, g\end{aligned}\).

Therefore, when the radius of the curve is \(r^{\prime}\), the maximum velocity of this truck would be:

\(\begin{aligned}v^{\prime} &= \sqrt{\mu_{k}\, g\, r^{\prime}}\end{aligned}\).

Likewise, it is possible to express \(\mu_{k}\) in terms of \(r\), \(g\), and max speed \(v\):

\(\displaystyle \mu_{k} = \frac{v^{2}}{r\, g}\).

Substitute this expression for \(\mu_{k}\) back into the expression for \(v^{\prime}\):

\(\begin{aligned}v^{\prime} &= \sqrt{\mu_{k}\, g\, r^{\prime}} \\ &= \sqrt{\frac{v^{2}}{r\, g}\, g\, r^{\prime}} \\ &= \sqrt{v^{2}\, \frac{r^{\prime}}{r}}\end{aligned}\).

Given that \(v = 32.5\; {\rm m\cdot s^{-1}}\), \(r = 150\; {\rm m}\), and \(r^{\prime} = 66.0\; {\rm m}\):

\(\begin{aligned}v^{\prime} &= \sqrt{v^{2}\, \frac{r^{\prime}}{r}} \\ &= \sqrt{(32.5\; {\rm m\cdot s^{-1}})^{2} \times \frac{66.0\; {\rm m}}{150\; {\rm m}}} \\ &\approx 21.6\; {\rm m\cdot s^{-1}}\end{aligned}\).

(a) a thin layer of vacuum is provided between the two walls of flask, to minimise the heat loss by conduction , because for conduction medium (molecules) is required , but now medium is absent .

.(b) the two walls are silvered to minimise the heat loss by radiation , because a shiny surface is a bad absorber and bad emitter of radiation i.e. good reflector of heat , so prevents the heat exchange between content of flask and surrounding .

(c) the lid of flask is provided with a tight cork stopper to minimise the heat loss by convection , so that convection currents cannot go out .

(d) a plastic (or metal) case is provided with a flask , to protect the flask from physical damage

hope it helps! please mark me brainliest

thank you! have a good day ahead

if u follow me, I will follow u back!

The vector that models the ship's movement in component form is ⟨38.71, 39.21⟩.

To find the vector in component form, we will follow these steps:
1. Convert the bearing of N47E to a standard angle.
2. Calculate the horizontal (x) and vertical (y) components of the vector using trigonometry.
Step 1: Convert N47E to a standard angle:
N47E means 47 degrees to the east of the north direction. To find the standard angle, measured counterclockwise from the positive x-axis, we subtract 47 degrees from 90 degrees: 90 - 47 = 43 degrees.
Step 2: Calculate the horizontal and vertical components:
Now that we have the standard angle, we can use trigonometry to find the x and y components of the vector. The ship travels 55 miles at an angle of 43 degrees. Using cosine and sine, we get:
x = 55 * cos(43°) ≈ 38.71
y = 55 * sin(43°) ≈ 39.21
Thus, the vector in component form is ⟨38.71, 39.21⟩.

Learn more about vector here:

https://brainly.com/question/29740341

#SPJ11

Answer:

Spend more time stretching after her workout.

Explanation:

Stretching aching muscles will boost blood flow and help breakdown the build-up of lactic acid. Stretches should be gentle, so you don't injure the muscles further.

Stretches to do after workouts to prevent you from being sore are:

The BEST way for Wendy to eliminate soreness is, Spend more time stretching after her workout.  The correct answer is option C.

Soreness after workouts, known as delayed onset muscle soreness (DOMS), is a common and normal response to new or intense exercise. Stretching after a workout can help improve flexibility, reduce muscle tension, and alleviate soreness by promoting blood flow and aiding in the repair and recovery process. Additionally, it's essential for Wendy to continue taking small steps and avoid ramping up exercise too quickly to prevent potential injuries. Incorporating proper warm-ups, cool-downs, and gradually increasing workout intensity will allow her to continue seeing positive results without excessive soreness. Option C is correct.

To know more about potential injuries, here

brainly.com/question/34286368

#SPJ2

The size of the field needed to create resonance is

= \(2\pi fmp/q\)

= \(2\pi (12.0X10\)⁶)(\(1.67X10\)⁻²⁷kg)

= 0.787T.

What is Kinetic energy?

A particle or an item that is in motion has a sort of energy called kinetic energy. When work, which entails the transmission of energy, is done on an object by applying a net force, that object acquires kinetic energy.

Therefore, the Kinetic energy is given by

K = 1/2 mv²

  = 1/2m\((2\pi Rf)\)²

 = 1/2\((1.67X10\)⁻²⁷kg)4\(\pi\)²(0.530m)²(12.0X10⁶Hz)²

 = 1.33X10⁻12J

 = 8.34X10⁶eV.

To learn more about Kinetic energy

Here: https://brainly.com/question/8101588

#SPJ4

If one travels away from the center of a mid-ocean rift (ridge) zone, the rock on either side of the rift zone gets progressively younger.

Hence, the correct option is A.

When one travels away from the center of a mid-ocean rift zone (ridge), the rock on either side of the rift zone gets progressively younger.

This is because at the mid-ocean ridge, new oceanic crust is formed through volcanic activity. As tectonic plates move away from the ridge, new magma rises to fill the gap, solidifies, and forms new rock.

Therefore, the rocks farther away from the ridge are younger compared to the rocks closer to the ridge.

Hence, the correct option is A.

To know more about mid-ocean rift (ridge) zone here

https://brainly.com/question/8529778

#SPJ4

Answer:

Hence, the height of the ceiling at the center is 44.72 feet.

Explanation:

Consider that a whispering gallery has a length of 120 feet, and the foci are located 40 feet from the center.

Assume that the shape is a horizontal semi-ellipse with a center (0,0) and has the equation,

\(\frac{x^{2} }{ a^{2} } + \frac{y^{2} }{b^{2} } =1\)  where a>b,

so,

2a = 120

a = 60

and

c = 40

Therefore, the equation of the ellipse is,

\(c^{2} = a^{2} -b^{2} \\\\40^{2} = 60^{2} -b^{2}\\\\b^{2} =2000\\\\b= 44.72.\)

Ferromagnetic materials can be magnetized more easily than other materials due to their ability to have their magnetic domains aligned. This property allows for a stronger and more pronounced magnetic effect compared to non-ferromagnetic materials.

Ferromagnetic materials, such as iron, nickel, and cobalt, have a unique property called ferromagnetism, which allows them to exhibit strong magnetic behavior. One of the key factors contributing to this property is the presence of magnetic domains within the material. Magnetic domains are regions within the material where the magnetic moments of individual atoms align in the same direction.

In the absence of an external magnetic field, the magnetic domains in ferromagnetic materials are randomly oriented, resulting in a net magnetic field of zero. However, when an external magnetic field is

applied, the domains can align in the direction of the field, resulting in a magnetized state.

What sets ferromagnetic materials apart from other materials is their ability to have their magnetic domains easily aligned. This means that the material can be magnetized more easily and exhibit a stronger magnetic effect. Once the external magnetic field is removed, the ferromagnetic material retains some degree of magnetization due to the aligned domains.

This characteristic of ferromagnetic materials makes them highly useful in various applications, including electromagnets, transformers, and magnetic storage devices.

Learn more about ferromagnetic materials here:

brainly.com/question/8266319

#SPJ11

Answer:

the answer is A

Explanation:

because I just know

Answer:

\( \boxed{ \bold{ \boxed{ \sf{see \: below}}}}\)

Explanation:

MA ( Mechanical Advantage ) is always less than VR ( Velocity Ratio ) because MA is reduced by friction but VR is not affected by friction.

Hope I helped!

Best regards! :D

Answer:

6

.40 recharge

1.0v

45.0v

Answer:

A. Piccolo

B. The flute would usually have the highest pitch, but because the piccolo is half the size of a flute, it's higher pitched. The piccolo in C has a range from D5 – C8 which is pretty high pitched. This means that the piccolo's range is an octave above that of the flute.

C. The human ear naturally picks out higher notes, so when piccolos play extremely high, we can hear them more easily than the other instruments in a band or orchestra.

D. I'm sorry but I don't know this one.

Answer:

metal atoms lose electrons to form positively charged ions. non-metal atoms gain electrons to form negatively charged ions

Explanation: