a jet moving at 500 km/h due east is in a region where the wind is moving at 120.0 km/h in a direction 30.00 degrees north of east. what is the speed of the aircraft relative to the ground

Answer:

A

Explanation:

Visible Light is generally considered part of the electromagnetic spectrum

The force of gravitational attraction is reduced by a factor of 4 when the separation distance between two objects is doubled (increased by a factor of 2).

The gravitational force, which is what pushes mass-containing objects toward one another. We frequently consider the pull of gravity from the Earth. Your body is kept on the ground by this force. However, all mass-bearing objects are pulled toward one another by gravity.

Greater gravitational forces will be used to attract heavier things since the gravitational force is directly proportional to the mass of both interacting objects. Therefore, the gravitational attraction between two objects grows as their respective masses do as well. The force of gravity between two objects is equal to their respective masses multiplied by two. If one of the items triples in mass, the gravitational pull between them will also triple.

The radius of a circle is the separation between its center and circumference. Always, the diameter is twice the radius. As a result, the formula is created by multiplying the diameter by two.

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Buoyancy or Buoyant force is the force which acts on the objects that are placed in a fluid. Thus, the correct option is B.

The buoyant force or buoyancy is the upward force that is exerted on an object which is fully or partially immersed in a fluid. This upward force is also called Up-thrust. Due to buoyant force, a body that is submerged in a fluid appears to lose its weight in the fluid, i.e. appears to be lighter. The factors which affect buoyant force are volume of the fluid displaced and the volume of the body that is submerged in fluid.

An example where buoyant force can be observed is a ship which is floating in the middle of the sea, an anchor that sinks when thrown in the water, and a fish which is hovering in the middle of the waterbody.

Therefore, the correct option is B.

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To remove the refrigerant from a system without any testing or processing and to be put back into the same system is called recovery.

Recover means to remove refrigerant in any condition from an appliance and to store it in an external container without necessarily testing or processing it in any way. Recovery efficiency means the percentage of refrigerant in an appliance that is recovered by a piece of recovery and/or recycling equipment.

In the vapor recovery method, the refrigerant is removed from the HVAC system in a vapor state. The vapor is then condensed into a liquid by the recovery unit and transferred to the recovery cyclinder.

To put it as simply as possible, refrigerant recovery refers to the transfer of a system's refrigerant into a refillable refrigerant cylinder during repairs or replacement of the air-conditioning system. By looking into refrigerant recovery, you can prevent refrigerants from leaking and releasing into the atmosphere.

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Answer: abundance

Explanation: Paradox Inequality is the result of abundance. intended or unintended consequences of social processes and relationships. prevents social equality, and that this inequality ultimately leads to social conflict.

As your textbook notes, the paradox of stratification is that inequality is the result of the Universal Basic Income.

A sociopolitical idea known as universal basic income proposes that every member of a particular population receive a transfer payment on a regular basis without having to prove their ability to pay.

A legally mandated and equally distributed cash award is provided by the government to all people of a given nation under the sociopolitical financial transfer policy concept known as universal basic income (UBI). Local, regional, or national implementation of a basic income are all possible.

The phenomena of birthweight-specific mortality curves crossing when stratified on other exposures, most notably cigarette smoking, is known as the "birth weight conundrum." The dilemma has received a lot of attention in the literature, and a lot of explanations and fixes have been proposed.

Thus, As your textbook notes, the paradox of stratification is that inequality is the result of the Universal Basic Income.

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The ability of the atmospheric pressure hypothesis to link the behavior of barometers with the behavior of siphons and vacuum pumps is an illustration of Internal coherence.

Atmospheric pressure is nothing but the force exerted on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer. At sea level has a mean value of 101,325 pascals (roughly 14.6959 pounds per square inch).

Coherent is nothing but if there are two source and  if their frequency and waveform are identical then they are coherent.

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A lion with a mass of 190 kg is chasing a gazelle with a mass of 15 kg. The distance between the lion and the gazelle is 2 meters. Both will exert an equal and opposite force on each other  of value  4752.4 * [tex]10^{-11}[/tex] N

Gravitational Force =  G m1 * m2 / [tex]r^{2}[/tex]

                                = 6.67 * [tex]10^{-11}[/tex] * 190 * 15 / 4

                                = 4752.4 * [tex]10^{-11}[/tex] N

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When K = 0, the motion's turning points take place. Think about frictionless one-dimensional motion in the x-direction. So whenever Etotal = U, K(x) = 0 and v = 0. (x).

friction is the resistance to a thing moving or rolling over another solid object. Although frictional forces can be advantageous, such as the traction required to walk without slipping, they also provide a significant amount of resistance to motion.

Because of the imperfections on the two surfaces in contact, friction is produced. Small imperfections can be found on even the smoothest surfaces, and when two surfaces interact with one another, they cause friction.

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The mass of her friend is 28.57.

Force is a push or pulls upon an item because of the object's interaction with some other object. pressure is a power that can exchange the motion of an object. A force can reason an object with mass to alternate its speed, i.e., to boost up. pressure also can be described intuitively as a push or a pull. A force has each significance and course, making it a vector amount.

Calculation:-

given;

mass = ?

acceleration = 2.1 m/s

force = 60 N

Force = mass × acceleration

 mass = force/acceleration

           = 60 /2.1

           =  28.57 kg

The phrase 'Force' has a unique meaning. At this degree, it is absolutely appropriate to describe a force as a push or a pull. A force is not something that an object consists of or 'has in it. A force is exerted on one object through another. The concept of a force isn't always restricted to living matters or non-living matters.

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a) Speed of the man will be

b) Yes the speed can be reduced by reducing the speed of the sandbag.

Speed can be defined as the rate of change of distance with respect to time.

Viewing the man-rope-sandbag as a system the total mass of the system will be 110 + 74 = 184 kg

height from the ground = S = 12 m

According to the second law of motion,

S = ut + 0.5 a t²

u = initial velocity = 0 m/s

t can be calculated from the above equation

a = 9.81 m/sec²

12 = 0 + 0.5 * 9.8 * t²

t² = 2.44

t = 1.5 sec

Now according to the first equation of motion,

v - u = at

Since 'u' is 0 'v' will be called as the speed of the man

v = 9.8 * 1.5

v = 14.7 m/se

The speed of the man by which he will hit the ground is 14.7 m/sec.

b) If the weight of the sandbag is increased, the man can reduce his acceleration and consequently the speed with which he hits the ground will decrease.

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200 ms²  is the kinetic energy for an object that weighs 40g and moving at 10 m/s.

Kinetic energy is the power that an object has had as a result of motion. To accelerate an object, a power must be supplied to it. To apply a force, we must exert effort. The power is transported to the object when work is accomplished, which causes it to move at a new, constant pace.

The capacity to perform work is unquestionably the most important characteristic of kinetic energy. Force acting on to an object while it is traveling is referred to as work. Energy and work are interchangeable because of their close relationship.

Using Kinetic Energy Formula:

K.E  = 1/2 mv²

K.E. = 1/2 * 40 * 10

K.E. = 200 ms²

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The net force required to horizontally accelerate a 90 kg person from rest to 66 m/s is  4596.3 N.

Acceleration is the rate of change of the velocity of an item with appreciation to time. Accelerations are vector quantities. The orientation of an item's acceleration is given by the orientation of the net pressure appearing on that object.

Given;

mass = 90 kg

initial velocity = 0

final velocity = 66 m/s

time = 1.3 sec

V = u + at

66 = 0 + a × 1.3

a = 66/1.3

a = 50.77 m/s²

F = ma

   = 90 × 50.77 N

   = 4596.3 N

Acceleration is the charge at which velocity modifications with time, in terms of each speed and route. A factor or an object moving in a straight line is accelerated if it quickens or slows down. movement on a circle is extended despite the fact that the rate is consistent because the course is continually changing.

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To outside observers at rest, the overall sizes of objects traveling at relativistic speeds are C) smaller.

This is roughly 186,282 miles per second, or "c," the symbol for light speed in mathematics. Nothing in the universe can move faster than light, according to physicist Albert Einstein's theory of special relativity, which forms the foundation of much of modern physics.

Therefore, Relativistic speed is the rate at which relativistic effects are important for achieving the appropriate level of measurement precision for the event under study. The differences between values calculated by models that take relativity into account

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See full question below

To outside observers, the overall sizes of objects traveling at relativistic speeds are

To outside observers, the overall sizes of objects traveling at relativistic speeds are

A) larger.

B) the same size.

C) smaller.

Firefighter can hit with water while standing at distance of 153 m from building.

The projectile travels the path with a parabolic trajectory due to the effect of gravity. No horizontal forces so there is no horizontal acceleration.

The velocity of a projectile has horizontal component and the vertical component.

The vertical component of the velocity, [tex]\displaystyle V_y = Vsin\theta[/tex]

The horizontal component of the velocity, [tex]\displaystyle V_x = Vcos\theta[/tex]

Given the angle θ with the X- axis = 40°

The velocity of the stream V = 39 m/s

The Y component of the velocity, Vy = 39× sin 40°

Vy = 25.1 m/s

The X component of the velocity, Vx = 39× cos 40°

Vx = 29.88 m/s

The time , t = Vy/g = 25.2/9.8 = 2.56 sec

The distance from the building, [tex]x = V_x\times 2t[/tex]

x = 29.88 ×2×2.56

x = 153 m

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If a flight is made from an area of lower pressure into an area of high pressure without the altimeter setting being adjusted, the altimeter will indicate option c - lower than the actual altitude above sea level.

When flying from a lower pressure area to a high-pressure area, the aircraft's altitude gradually rises while the altimeter remains constant; thus, the ALTIMETER indicates a lower altitude than the aircraft is actually flying. The quantity of gas particles with in air reduces as height increases atmosphere becomes less dense than air nearer to ocean level. It's what weathermen and mountain climbers refer to when they speak regarding "thin air." Thin air imposes fewer pressure than lesser air.

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Answer:

The normal force 630.4 N

Explanation:

Given:

m = 57.0 kg

a = 1.25 m/s²

g = 9.81 m/s²

___________

N - ?

Since the elevator is moving with acceleration UP, the reaction of the support:

N = m· (g + a)

N = 57.0·(9.81 + 1.25) ≈ 630.4 N

The larget specific heat capacity is the alcohol. Option A.

The specific heat of a substance is the heat capacity of a sample of the substance divided by the mass of the sample, sometimes called the mass heat capacity. Water has a very high specific heat. That means it has to absorb a lot of energy before the temperature changes.

On the other hand, sand and asphalt have low specific heat. This means that the temperature changes faster. The temperature rise in milk is higher because the specific heat of water is greater than that of milk. Water has the highest specific heat capacity that any liquid can produce. Specific heat is defined as the amount of heat that one gram of material must absorb or release to change its temperature by one degree Celsius.

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Total resistance of resistors is sum of all resistors.

Total resistance in series is R1 + R2 + R3.

Total resistance in parallel is 1/R1 + 1/R2 + 1/R3.

Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms, symbolized by the Greek letter omega.

An easier way to explain resistance is to consider an example of a person in a crowded market struggling to go from one shop to another. This situation is certainly similar to an electron trying to make its way through a wire.

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(a) over the distance of 150.8   cm  on the surface of the water, the group of waves extends.

(b) an observer counts 12 wave crests in the group.  the precision with which the wavelength can be determined is  0.112 cm

We are provided with the time taken which is 5.2 s  and the wave speed which is 29 cm/s. Since  distance , d = velocity * time

=  29 cm/s *  5.2 s  = 150.8   cm

For the second part, λ=d / N,  where  λ is the wavelength and N is the number of wave crest

so λ= 150.8 /12 = 12.56 = 13  cm

so Δ λ =ε  λ²/ d  

 here ε = 0.1

so Δλ = 0.1*13²/150.8   = 0.112 cm

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The answer is 42300km. The gravitational field on the surface of a neutron star is about 2.0×1012 m/s2, about 2×1011 times that of the Earth.

Neutron stars form when giant stars run out of fuel and collapse. The central part of the star, the core, collapses, crushing each proton and electron into a neutron. Neutron stars are extreme objects with diameters of 10 to 20 km. Their density is 1017 kg/m3 (Earth's density is about 5×103 kg/m3, even white dwarfs have a density of one million times less). A small, very dense star composed almost entirely of densely packed neutrons. About 10 km radius (the size of Manhattan). Pulsar. A source of short radio bursts with precise timing. Probably a rotating neutron star. lighthouse model.

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Due to the fact that the work relies on the chosen path, friction is non-conservative. a force that prevents two solid objects from rolling or sliding over one another.

friction is the resistance to a thing moving or rolling over another solid object. Although frictional forces can be advantageous, such as the traction required to walk without slipping, they also provide a significant amount of resistance to motion.

Because of the imperfections on the two surfaces in contact, friction is produced. Small imperfections can be found on even the smoothest surfaces, and when two surfaces interact with one another, they cause friction.

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The impulse given to the ball by the golfer with a club is 1080 Ns.

Impulse can be defined as the product of force and time.

To calculate the impulse given to the ball, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the impulse given to the ball is 1080 Ns.

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The abundance of argon by mass is 1.6% and we have observed dry stream beds and outflow channels.

An atmosphere is a layer of gas or layers of gas that surround a planet and are held in place by the gravity of the planetary body (from the Ancient Greek (atoms) "vapour, steam" and (sphere) "sphere"). When the gravity is strong and the temperature of the atmosphere is low, a planet preserves its atmosphere. The outer part of a star, which includes the layers above the opaque photosphere, is known as the stellar atmosphere; low-temperature stars may have outer atmospheres with complex molecules.

Nitrogen makes up 78% of the atmosphere of Earth, along with oxygen (21%), argon (0.9%), carbon dioxide (0.04%), and trace gases. Most of the living things use oxygen to breathe.

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To learn the equilibrium and temperature.

What is equilibrium?

When Newton's first law is true, the equilibrium state of an object is present. When all external forces (including moments) operating on an object in a reference coordinate system are equal, the object is said to be in equilibrium. The net effect of all external forces and moments acting on this object is zero as a result.

What is temperatue?

Temperature is a unit of measurement that can be expressed on a variety of scales, including Fahrenheit and Celsius. Temperature shows the direction of the spontaneous movement of heat energy, i.e., from a hotter body (one with a higher temperature) to a colder body (one with a lower temperature).

Their temperatures must be equal if two bodies are in thermal equilibrium.

As for coldness or warmth, we generally observe that metals feel colder while non metallic objects don't (i.e. comparatively they feel warmer than metals). This is due to the fact that metals are good conductor of heat. So when we touch a metallic body, heat flows from our body and is transferred to other points of the metal object. Since our body loses heat, we feel cold. In non metals, this conduction of heat from point of contact to other locations does not happen.

Therefore, the amount of heat loss from our body is much smaller. So we don't feel that cold.

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We now think that the canals seen on Mars in the late nineteenth and early twentieth century were the result of optical illusions.

The canals of Mars, which appeared to be systems of long, straight lines on the surface of Mars, are now understood to be illusions caused by the unintentional alignment of craters and other natural surface features that are seen in telescopes close to their resolution limit. They sparked a lot of debate and influenced how people perceived the possibility of life beyond Earth in the late 19th and early 20th centuries.

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Taking into account the Universal Law of Gravitation, the distance between the objects is 1.10396×10⁻⁶ m².

The Universal Law of Gravitation establishes that bodies, by the simple fact of having mass, experience a force of attraction towards other bodies with mass, called gravitational force.

This law states that the gravitational force between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance that separates them, expressed as:

[tex]F=G\frac{Mm}{d^{2} }[/tex]

where:

In this case, you know:

Replacing in the Universal Law of Gravitation:

[tex]9.2x10^{-6} N=6.67x10^{-11}\frac{Nm^{2} }{kg^{2} } \frac{4.1x10^{2} kgx 4.1x10^{2} kg}{d^{2} }[/tex]

Solving:

9.2×10⁻⁶ N÷ 6.67×10⁻¹¹ [tex]\frac{Nm^{2} }{kg^{2} }[/tex]= [tex]\frac{4.1x10^{2} kgx 4.1x10^{2} kg}{d^{2} }[/tex]

1.3793×10⁻¹⁷ kg²÷m²= [tex]\frac{168100 kg^{2} }{d^{2} }[/tex]

1.3793×10⁻¹⁷ kg²÷m²× d²= 168100 kg²

d²= 168100 kg²÷ 1.3793×10⁻¹⁷ kg²÷m²

d²= 1.2187341×10⁻¹² m²

d= √1.2187341×10⁻¹² m²

d= 1.10396×10⁻⁶ m²

Finally, the distance is 1.10396×10⁻⁶ m².

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A 8-kg object moves down vertically a distance of 3 m. its potential energy has changed by approximately it has increased by 24 J.

What is Potential Energy?

However, Let's study the definition of potential energy and its formula before moving on to instances and the potential energy unit.

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The relationship between the two speeds v1 and v2 is v2=v1√2 when an

object of unknown mass is initially at rest and dropped from a height h

The given parameters;

initial velocity of the object, u = 0

object height = h

final velocity = v1

initial velocity for the second movement, = v1

final speed of the object in the second movement, = v2

The relationship between the initial speed and the final speed is given below;

For the first movement;

v1^2 = v0^2+2gh

v1^2 = 2gh

For second motion;

v2^2 = v1^2+2gh

Relationship between the two speeds;

v2^2 = v1^2+v1^2

v2=√2v1

Thus, the relationship between the two speeds v1 and v2 is v2 = √2v1

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Despite the fact that design is frequently thought of as the domain of creatives who (we have been led to believe) prefer an overall lack of structure, design thinking is very much a structured activity.

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