Each airport has a runway that is about 500 m long.
when it lands, the speed of the aeroplane is 40 m/s.
explain why the airline should not use an aeroplane that has more mass and
needs a higher speed for landing.

Taking into account the Universal Law of Gravitation, the force of attraction between the tow objects is 8 N.

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.

The Universal Law of Gravitation 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.

Mathematically it is expressed as follows:

\(F=G\frac{Mm}{d^{2} }\)

where:

In this case, two objects attract each other with a gravitational force of 32 newtons. The distance between the two objects is doubled.

Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

Then, if the separation distance between two objects is doubled (increased by a factor of 2), then the force of gravitational attraction is decreased by a factor of 4 (d²= 2²= 4). The new force is then \(\frac{1}{4}\) of the original:

F=\(\frac{1}{4}\)×Foriginal

F=\(\frac{1}{4}\)×32 N

F= 8 N

Finally, the force of attraction between the tow objects is 8 N.

Learn more about the Universal Law of Gravitation:

brainly.com/question/15967105

brainly.com/question/11359658

#SPJ1

The description of the measurement is incomplete, and therefore it is impossible to determine the type of error.

What is Measurement?

Measurement is the process of quantifying or determining the size, amount, or degree of something using standard units or scales. It involves assigning a numerical value to a physical quantity, property, or characteristic of an object, event, or phenomenon.

Measurement is a fundamental tool used in science, engineering, commerce, and everyday life. It allows us to make comparisons, establish standards, and assess the accuracy and precision of our observations and experiments. Some common examples of measurements include length, mass, time, and volume, which are typically expressed in units such as meters, kilograms, seconds, degrees Celsius, and liters, respectively.

The error described in this case is systematic error, also known as a bias. The stopwatch consistently measures time intervals that are either longer or shorter than the actual time.

Learn more about Measurement from given link

https://brainly.com/question/13893070

#SPJ1

The new volume would be tripled if we tripled the amount of moles in the gas vessel while maintaining a fixed pressure.

They frequently take the form of tiny, dark brown spots and are brought on by clumps of pigment-forming cells (melanocytes). The majority of people have between 10 and 40 moles, which usually form during adolescence and childhood and it may change or disappear over time. Melanocytes are the type of cells that make up moles. Our skin contains several melanocytes, which are the cells responsible for producing the pigment melanin, which causes our skin to tan. Numerous clustered melanocyte cells make up a mole.

Most moles do not need to be treated. However, if you don't like the way a mole looks or feels, you might wish to have it removed. If you have any concerns about a mole, consult your doctor. Moles are typically removed if your doctor thinks they could be malignant or for aesthetic purposes. The term "mole" on your skin can also refer to a nevus, or "beauty mark." The majority of moles are benign, and they are extremely frequent. They should not bleed, hurt, or itch, and they are not contagious. The lifespan of a mole can reach 50 years.

To know more about Moles visit:

https://brainly.com/question/21323029

#SPJ4

Given:

The time period for which Nora rides the bicycle, t=5 min

The speed of the bicycle, s=10 m/s

To find:

The description of the ride.

Explanation:

The speed is a scalar quantity and has only magnitude. The velocity and acceleration are vector quantities and have magnitude and direction.

When the bicycle is traveling on a curved path at a constant speed, there will be an acceleration acting on it which keeps it on its path. This acceleration is called the centripetal acceleration.

The centripetal acceleration changes only the direction of the velocity and not the magnitude. Thus the speed will be constant. But the velocity will be changing at a constant acceleration.

Dielectrics are substances that prevent the flow of current.

They are most frequently used for energy storage in capacitors and to build radio frequency transmission lines because of their capacity to store charges. To enhance the performance of semiconductors, high-permittivity dielectric materials are frequently utilised.

They are most frequently used for energy storage in capacitors and to build radio frequency transmission lines because of their capacity to store charges.

To enhance the performance of semiconductors, high-permittivity dielectric materials are frequently utilised. a material that is dielectric, insulating, or an extremely bad conductor of electrical current. A substance that is an electrical insulator is known as a dielectric material.

To learn more about Dielectrics refer to:

https://brainly.com/question/13265076

#SPJ4

Answer:

The body flies off to the left at 9.1 m/s

Explanation:

Law Of Conservation Of Linear Momentum

It states the total momentum of a system of bodies is conserved unless an external force is applied to it. The formula for the momentum of a body with mass m and speed v is  

P=mv.  

If we have a system of bodies, then the total momentum is the sum of the individual momentums:

\(P=m_1v_1+m_2v_2+...+m_nv_n\)

If a collision occurs and the velocities change to v', the final momentum is:

\(P'=m_1v'_1+m_2v'_2+...+m_nv'_n\)

Since the total momentum is conserved, then:

P = P'

In a system of two masses, the equation simplifies to:

\(m_1v_1+m_2v_2=m_1v'_1+m_2v'_2\qquad\qquad[1]\)

Wall-E robot is initially at rest, its two parts together. His head has a mass of m1=0.75 kg and his body has a mass of m2=6.2 kg. Both parts have initial speeds of zero v1=v2=0.

After the explosion, his head flies off to the right at v1'=75 m/s. We are required to find the speed of his body v2'. Solving [1] for v2':

\(\displaystyle v'_2=\frac{m_1v_1+m_2v_2-m_1v'_1}{m_2}\)

Substituting values:

\(\displaystyle v'_2=\frac{0.75*0+6.2*0-0.75*75}{6.2}\)

\(\displaystyle v'_2=-9.1 \ m/s\)

The body flies off to the left at 9.1 m/s

Answer:

a. frequency = 25 Hz, period = 0.04 s , wave number = 19.63 rad/m

b. y = (0.0700 m)sin[(19.63 rad/m)x - (157.08 rad/s)t]

c.  0.0496 m

d. 0.03 s

Explanation:

a. Frequency, f = v/λ where v = wave speed = 8.00 m/s and λ = wavelength = 0.320 m

f = v/λ = 8.00 m/s ÷ 0.320 m = 25 Hz

Period, T = 1/f = 1/25 = 0.04 s

Wave number k = 2π/λ = 2π/0.320 m = 19.63 rad-m⁻¹

b. Using y = Asin(kx - ωt) the equation of a wave

where y = displacement of the wave, A = amplitude of wave = 0.0700 m and ω = angular speed of wave = 2π/T = 2π/0.04 s = 157.08 rad/s

Substituting the variables into y, we have

y = (0.0700 m)sin[(19.63 rad/m)x - (157.08 rad/s)t]

c. When x = 0.360 m and t = 0.150 s, we substitute these into y to obtain

y = (0.0700 m)sin[(19.63 rad/m)x - (157.08 rad/s)t]

y = (0.0700 m)sin[(19.63 rad/m × 0.360 m) - (157.08 rad/s × 0.150 s)]

y = (0.0700 m)sin[(7.0668 rad) - (23.562 rad)]

y = (0.0700 m)sin[-16.4952 rad]

y = (0.0700 m) × 0.7084

y = 0.0496 m

d. For the particle at x = 0.360 m to reach its next maximum displacement, y = 0.0700 m at time t. So,

y = (0.0700 m)sin[(19.63 rad/m)x - (157.08 rad/s)t]

0.0700 m = (0.0700 m)sin[(19.63 rad/m × 0.360 m) - (157.08 rad/s)t]

0.0700 m = (0.0700 m)sin[(7.0668 rad - (157.08 rad/s)t]  

Dividing through by 0.0700 m, we have

1 = sin[(7.0668 rad - (157.08 rad/s)t]

sin⁻¹(1) = 7.0668 rad - (157.08 rad/s)t  

π/2 = 7.0668 rad - (157.08 rad/s)t

π/2 - 7.0668 rad = - (157.08 rad/s)t

-5.496 rad = - (157.08 rad/s)t

t = -5.496 rad/(-157.08 rad/s) = 0.03 s

The frequency of the wave is 25 Hz, the period is 0.04 s, and the wave number of the given wave is 19.63 rad/m.

(A) Frequency of the wave,

\(\bold {f = \dfrac v{\lambda}}\)

where

v - speed = 8.00 m/s

λ - wavelength = 0.320 m

\(\bold {f = \dfrac {8.0 m/s }{0.32\ m} = 25\ Hz}\)

Period of the wave,

\(\bold {T = \dfrac 1f = \dfrac 1{25 } = 0.04\ s }\)

Wave number of the wave,

\(\bold {k = \dfrac {2\pi }{\lambda} = \dfrac {2\pi }{0.320} = 19.63\ rad\ m^{-1}}\)

(B)

Wave function equation of a wave,

y = A sin (kx - ωt)

where

y - displacement of the wave

A = amplitude  = 0.0700 m

ω = angular speed  = 2π/T = 2π/0.04 s = 157.08 rad/s

Put the values in the formula,

y = (0.0700 m)sin[(19.63 rad/m)x - (157.08 rad/s)t]

(C) When x = 0.360 m and t = 0.150 s,

y = (0.0700 m)sin[(19.63 rad/m × 0.360 m) - (157.08 rad/s × 0.150 s)]

y = 0.0496 m

Therefore, the frequency of the wave is 25 Hz, the period is 0.04 s, and the wave number of the given wave is 19.63 rad/m.

To know more about waves,

https://brainly.com/question/3004869

Answer:

Yes.

Explanation:

Food provides units of energy in the form of calories that give our bodies fuel to perform all functions from the most basic like breathing to more complicated activities. We need a minimum amount of calories from food to sustain basic metabolic functions and more to carry out physical activities. The more active we are, the more food we need.

Answer:

yes

Explanation:

because Our body uses energy for all of its functions and food is the main source of energy. Food contains nutrients that when broken down in the gastrointestinal tract release energy that can be used by the body's cells, tissues and organs for normal function, growth and repair.

The first mistake individuals made was to believe that Earth was the center of everything, as the Catholic Church believed. Galileo's idea about Earth revolving arount the Sun was heretical and enough to me condemned.

The second mistake individuals made was to believe that all the physical things was comanded by God only, denying the possibility of having formal science to study the physical world.

‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎1500 kpm

Answer:

0J

Explanation:

PE=mgh

PE=  1000kgx9.8m/s^2x0m

PE = 0J

Two points P and Q on a progressive wave are separated by distance d. The phase difference between P and Q is rad. The wavelength of the wave would be 8 times the distance between points P and Q.

In a progressive wave, the phase difference between two points is related to the wavelength of the wave. To find the wavelength (λ) given the phase difference (ϕ) and the distance (d) between two points, we can use the formula:

ϕ = 2π(d/λ)

Rearranging the equation to solve for λ, we have:

λ = (2πd) / ϕ

In this case, the phase difference between points P and Q is given as ϕ radians. The distance between these points is denoted by d. By substituting these values into the equation, we can determine the wavelength of the wave.

It's important to note that the phase difference is typically measured in radians, and one complete wave cycle corresponds to 2π radians.

For example, let's say the phase difference between points P and Q is π/4 radians, and the distance between them is d. Using the formula above, the wavelength would be:

λ = (2πd) / (π/4)

λ = (8πd) / π

λ = 8d

This calculation demonstrates how the phase difference and distance between points on a wave are related to the wavelength. By knowing the phase difference and distance, we can determine the wavelength of the wave using the formula derived from the wave's periodic nature.

For more such information on: wavelength

https://brainly.com/question/10750459

#SPJ8

Answer:

Explanation:

Welcome to Pagasi b,  new recruit.  You will enjoy your new, fresh , home planet.  Your new home world is more relaxed than earth, days are longer by about quadruple, as are the nights.   Also seasons are also about 4 times  as long on Pagasi b. one year on Pagasi b is a bit over 4 years on earth.  You'll get great harvests and plenty of time to rest up during the mild, yet cool winters.  If the equatorial region is too warm for you during summer you can always travel north as the planet is at a 79 degree axis tilt , and will provide much cooler climes as you travel north for summers.  Have a great day, day, day, day   :P

Answer:

XZXDHF

Explanation:ZDHF

The frequency of the alternating signal in the antennae wiring is 103.5 Hz.

Resonant frequency is the oscillation or vibration of a system at its natural frequency.

When the radio antennae picks up the radio wave, the natural frequency of the antennae must be the same as the frequency of the radio wave.

frequency of the antennae = frequency of the radio wave

Thus, the frequency of the alternating signal in the antennae wiring is 103.5 Hz.

Learn more about resonant frequency here: https://brainly.com/question/9324332

Answer:

1 inch = 2.54 cm

12.9 inches= 12.9 x 2.54

= 32.766

= 32.8 cm (approximately)

Hope it helps...

Answer:

B) I just solved it

Explanation:

Answer:

Sugar ofc.

Explanation:

Have you seen energy drinks such as gatorade? Electrolytes

Answer:

An electrolyte solution contains water, salt, potassium and sugar in the proper concentration. The salt and sugar also have an added benefit of helping the body absorb the water - it turns out we absorb water with a little salt and sugar much better than we do plain water.

Explanation:

The question addresses the stability of the atmosphere and the factors that determine convective stability or instability. It also explains the difference between the adiabatic lapse rate of dry air and wet saturated air.

a) The stability of the atmosphere is determined by the temperature profile and relative densities of the air cell and atmosphere. If the temperature of the surrounding atmosphere decreases with altitude at a rate greater than the adiabatic lapse rate of the air cell, the atmosphere is considered convectively stable.

In this case, the air cell will return to its original position. Conversely, if the temperature of the surrounding atmosphere decreases slower than the adiabatic lapse rate of the air cell, the atmosphere is convectively unstable. The air cell will continue moving in the same direction.

b) The adiabatic lapse rate refers to the rate at which temperature decreases with altitude for a parcel of air lifted or descending adiabatically (without exchanging heat with its surroundings). The adiabatic lapse rate of dry air is higher (around \(9.8^0C\) per kilometer) compared to the adiabatic lapse rate of wet saturated air (around 5°C per kilometer).

This difference arises because when water vapor condenses during the ascent of saturated air, latent heat is released, reducing the rate of temperature decrease. A diagram can illustrate the difference between the two lapse rates, showcasing their respective slopes.

c) When wet unsaturated air rises from the ocean surface, its temperature decreases at a rate equal to the dry adiabatic lapse rate. However, if the ambient lapse rate (temperature decrease with altitude) is higher than the adiabatic lapse rate for dry air, a temperature inversion layer forms at higher altitudes.

In this inversion layer, the temperature increases with altitude instead of decreasing. A schematic diagram can depict the temperature changes of the wet air in comparison to the ambient temperature, showing the inversion layer.

Cumulus clouds form at the altitude where the rising moist air reaches the level of the temperature inversion layer. These clouds are formed due to the condensation of water vapor as the air parcel cools to its dew point temperature.

Learn more about adiabatic lapse rates here:

https://brainly.com/question/30023377

#SPJ11

Answer:

for number 1 i got 100

Explanation:

No, after an alpha particle leaves the nucleus, it would not speed up because it has already been accelerated to its maximum velocity while it was inside the nucleus.

The alpha particle is emitted from a nucleus due to the process of radioactive decay, where the unstable nucleus emits an alpha particle to become more stable. During its formation, the alpha particle gains energy from the decay process, which causes it to move away from the nucleus. This energy is typically in the form of kinetic energy, which is the energy associated with the motion of an object.

Once the alpha particle leaves the nucleus, it travels at a constant velocity, which is determined by its initial kinetic energy and the resistance it encounters from the surrounding environment. This resistance is primarily due to the presence of other particles in the surrounding medium, such as air molecules or other atoms, which can cause the alpha particle to lose some of its kinetic energy through collisions.

Therefore, the alpha particle will not speed up after leaving the nucleus because it has already reached its maximum velocity inside the nucleus. However, it may lose some of its kinetic energy due to collisions with other particles, which could cause it to slow down over time.

To know more about alpha particle, refer to the link below:

https://brainly.com/question/24276675#

#SPJ11

Venus must go backwards around the inferior conjunction. Therefore, option E is correct.

Copernicus' explanation, Retrograde motion is when a planet appears to be moving backward as compared to the background stars. When Venus passes between the Earth and the Sun at the inferior conjunction, Venus begins its retrograde motion.

Venus appears to slow down, stop, and then move backward for a brief time before resuming its usual speed at this time when it is closest to the Earth. This phenomena explains the heliocentric model of solar system.

To know more about retrograde motion, visit,

https://brainly.com/question/22921263

#SPJ4

Complete question - According to Copernicus, retrograde motion for Venus must occur around:

A. Quadrature, when the planet is 90 degrees away from the sun

B. Opposition, when the planet lies opposite the sun in the sky

C. Greatest elongation, when the planet is farthest from the sun

D. Superior conjunction, when the planet is on the far side of the sun

E. Inferior conjunction, when it passes between us and the sun

Answer: 6,277,647m

Explanation:

Radius of Earth = 6400km

To calculate the gravitational acceleration of a planet, we use the following formula:

g = mG/r^2

Gravitational acceleration is equal to the mass of the planet multiplied by the gravitational constant all divided by the radius of the planet squared.

We already know what the gravitational acceleration will be, 2.45m/s^2.

So, 2.45m/s^2 = mG/r^2

the mass of the earth is equal to 5.9*10^24.

And the gravitational constant is equal to 6.67408 * 10^-11.

We don't know the radius though.

2.45m/s^2 = 5.9*10^24 * 6.67408 * 10^-11 divided by r^2

2.45m/s^2 = 3.93 * 10^14 divide by r^2

Now, we can cross-multiply.

2.45m/s^2 * r^2 = 3.93 * 10^14

divide r^2 from both sides.

r^2 = 3.93 * 10^14 divided by 2.45m/s^2

r^2 = 1.6*10^14.

Now, take the square root of both sides.

r = 12,677,647 meters from the center of the Earth.

To calculate the height from the surface of the Earth, we need to subtract r by the Earth's radius.

That will be 12,677,647-6.400.000m = 6,277,647m from the surface of Earth.

Answer:

the cost of operating the light bulb is 72 cents.

Explanation:

Given;

cost of electricity, C = 6 cents / kW.h

power of light bulb, P = 100 W

time of light power consumption, t = 4 hours per day for 30 days

total time = 4 hours x 30 = 120 hours

Power consumed by the light bulb is calculated as;

P = 100 x 120 = 12000 w.h = 12 kW.h

Cost of power consumption = 6 cents/kWh x 12 kWh

                                               = 72 cents

Therefore, the cost of operating the light bulb is 72 cents.

The period of the storm is 2s

The frequency of the storm is 0.5 Hz

When we talk about the period, what we mean is the time that it would take to complete a cycle. In this case, we have to be looking at the question that we have. We are told that  it takes two seconds for the storm to complete one cycle. This means that the period of the storm is 2s.

The frequency would be the inverse of the period so we can have that;

Frequency = 1/Period

Frequency = 1/2

= 0.5 Hz as shown

Learn more about period:https://brainly.com/question/28249471

#SPJ1

If it takes two seconds for the swing to complete one cycle, the period of the swing is the time it takes to complete one cycle, which in this case is 2 seconds.

To find the frequency of the swing, you need to calculate the number of cycles completed in one second. Frequency is the reciprocal of the period, so to find the frequency, you can use the formula:

Frequency = 1 / Period

In this case:

Frequency = 1 / 2 seconds = 0.5 Hz (Hertz)

So, the period of the swing is 2 seconds, and the frequency of the swing is 0.5 Hz.

To know more about the swing refer here :

https://brainly.com/question/24968923#

#SPJ11

Explanation:

\(workdone = force \times distance \\ = 500 \times 100 \\ = 50000 \: J\)

Answer:

4 m/s

Explanation:

10/2.5= 4 m/s

Answer:

important – mass, and distance.