How did people fly before Isaac Newton invented gravity?

Answer:

Explanation:

p = m * v

where m is the mass of the object and v is its velocity/speed.

In this case, we are given the momentum (p) and the mass (m) of the football. We can rearrange the formula to solve for v:

v = p / m

Substituting the given values, we get:

v = 8 kg * m/s / 0.4 kg

v = 20 m/s

Answer:

a) Alpha rays because an alpha ray involves a Helium nucleus - with an atomic number of two and a mass number of 4

Beta rays would be next which involve an electron which is thousands of times less massive than an alpha ray

The locust jumped a total distance of 0.750 m at an angle of 55.0°. Using the sine and cosine functions, we can calculate the horizontal and vertical components of the jump.

Angle is a geometric figure formed by two lines or rays diverging from a common point. It is measured in degrees, and is used to indicate the amount of turn between the two lines or rays. Angles are often used in geometry, engineering, and physics to measure the size of objects or the amount of turn in a path. Angles are also used to indicate direction, such as in a compass. In mathematics, angles can be used to calculate the area and volume of shapes, as well as the length of curves.

The horizontal component is 0.666 m and the vertical component is 0.450 m. This means the locust jumped 0.666 m horizontally and 0.450 m vertically.

To learn more about angle

https://brainly.com/question/26262923

#SPJ1

When capacitors are connected in series, the potential difference across each capacitor is different. The capacitor with the smallest capacitance will have the greatest potential difference across it.

This is because the total charge on each capacitor is the same, but the smaller capacitor will store less charge and thus experience a larger voltage drop. In other words, the voltage drop across each capacitor is proportional to its capacitance, and the capacitor with the smallest capacitance will experience the greatest voltage drop. So, the answer to your question is that the capacitor with the smallest capacitance has the greatest potential difference across it.

To know more about capacitors click here:

https://brainly.com/question/17176550

#SPJ11

When an outlet from an Underfloor raceway is discontinued, the circuit conductors supplying the outlet must be disconnected, isolated, and insulated from any possible contact with other conductors. This ensures safety and prevents potential short circuits or other electrical hazards. The underfloor raceway is a system used in commercial buildings to distribute electrical power and data cabling underneath the raised floor. It typically consists of metal or plastic conduit channels installed below the floor surface, providing a concealed pathway for routing electrical conductors.

The circuit conductors supplying power to that outlet are disconnected and terminated properly. This may involve removing the outlet box, disconnecting the conductors from the circuit breaker or fuse panel, and properly capping or terminating the conductors to ensure they are safely and securely isolated from the electrical system. Following local electrical codes and best practices is essential to ensure the safe and efficient operation of the electrical system.

learn more about Underfloor Raceway here:

https://brainly.com/question/29934734

#SPJ11

(a) The potential difference between the plates is approximately 8.97 Volts.

(b) The mass of the plastic sphere is approximately 1.94x10^-17 kg.

To calculate the potential difference between the plates, we can use the formula for electric force:

Electric force (F_e) = Charge (q) * Electric field (E)

The electric field (E) between the plates is given by:

Electric field (E) = Voltage (V) / Distance (d)

where;

Setting the electric force equal to the force of gravity (F_g) on the sphere, we have:

Charge (q) * Electric field (E) = Mass (m) * Acceleration due to gravity (g)

Solving for the electric field (E), we get:

Electric field (E) = (Mass (m) * Acceleration due to gravity (g)) / Charge (q)

Since the electric force (F_e) is given as 2.5x10^-15N and the charge (q) on the plastic sphere is +7.6x10^-19C, we can substitute these values into the equation:

2.5x10^-15N = (Mass (m) * 9.8 m/s^2) / 7.6x10^-19C

Solving for mass (m), we get:

Mass (m) = (2.5x10^-15N * 7.6x10^-19C) / (9.8 m/s^2)

Mass (m) ≈ 1.94x10^-17 kg

b. Now that we know the mass of the plastic sphere is 1.94x10^-17 kg, we can calculate the potential difference (V) between the plates using the formula for electric field:

Electric field (E) = Voltage (V) / Distance (d)

Solving for voltage (V), we get:

Voltage (V) = Electric field (E) * Distance (d)

We already know the distance between the plates (d) is 0.020 m, and we can use the electric field (E) that we calculated in part a, which is approximately:

Electric field (E) ≈ (2.5x10^-15N * 7.6x10^-19C) / (1.94x10^-17 kg * 9.8 m/s^2)

Plugging in the values, we can now calculate the potential difference (V):

Voltage (V) ≈ 8.97 V

Learn more about potential difference here:  https://brainly.com/question/14306881

#SPJ1

Both the Opacity and Fill options control a layer's transparency. That is, they control how much the currently selected layer allows other layers below it in the document to show through.

In most digital design or image editing applications, the Opacity tool can be used to change the transparency or translucency of a form or layer.

Opacity regulates how transparent or opaque an object or layer is. The object or layer becomes more opaque and less transparent with a higher opacity value, whereas the opposite is true with a lower opacity setting.

Learn more about Opacity at:

https://brainly.com/question/14135361

#SPJ1

The peak voltage of a sine wave is equal to the RMS amplitude multiplied by the square root of 2. Therefore, the peak voltage of this sine wave is:

Peak voltage = 2.0 V x √2 = 2.0 V x 1.414 = 2.828 V

The peak-to-peak voltage of a sine wave is twice the peak voltage. Therefore, the peak-to-peak voltage of this sine wave is:

Peak-to-peak voltage = 2 x 2.828 V = 5.656 V

to know more about voltage please vist :-

https://brainly.com/question/29445057

#SPJ11

To determine the required THHN conductor size for an air-conditioning unit with a conductor ampacity of 34 amperes and terminals rated at 75 degrees Celsius,

Please follow these steps:
1. Refer to the National Electrical Code (NEC) table 310.15(B)(16) for allowable ampacities of insulated conductors rated up to and including 2000 Volts.
2. Locate the column for the 75-degree Celsius terminal rating, as specified by your equipment and circuit breakers.
3. Find the conductor size that has an ampacity equal to or greater than 34 amperes in the 75-degree Celsius column.
Following these steps, you will find that the appropriate THHN conductor size for your air-conditioning unit is 8 AWG, as it has an allowable ampacity of 50 amperes in the 75-degree Celsius column, which is sufficient for the required 34 amperes.

Visit here to learn more about conductor:

brainly.com/question/8426444

#SPJ11

It is estimated that there is b. 20 to 30 times as much more water stored underground than in all the surface streams and lakes.

This significant amount of water is found in aquifers, which are underground layers of rock, sand, and gravel that hold water. These underground reservoirs play a crucial role in providing freshwater to communities, agriculture, and industries worldwide.

Surface water, on the other hand, consists of lakes, rivers, and streams, which are visible and more commonly utilized sources of water. While both underground and surface water sources are essential for sustaining life on Earth, it's crucial to understand the vast difference in their quantities to efficiently manage and protect these valuable resources. It is estimated that there is b. 20 to 30 times as much more water stored underground than in all the surface streams and lakes.

learn more about aquifers here:

https://brainly.com/question/14916917?

#SPJ11

According to NEC Article 330.24, the radius of the inner edge of any bend for a cable with a diameter of over ¾ inch shall not be less than 12 times the diameter of the MI cable.

To determine the appropriate bend radius for this particular cable, we first need to calculate its diameter using the given information in the question. Therefore, 332 - 24(2) = 284, which is the cable's diameter in mils. To convert this to inches, we divide by 1000, so the diameter is 0.284 inches.

Therefore, the minimum bend radius for this cable is 12 x 0.284 = 3.408 inches. This means that any bend in this cable must have a radius of at least 3.408 inches to prevent damage to the cable.

For more such questions on radius, click on:

https://brainly.com/question/29595940

#SPJ11

That hole provides three main roles: 1 for living two for speaking, and a third for swallowing. It fulfils three roles. When he swallows, his lip closes the hole of the palate in the rear his his mouth, settling the fleshly valves in the top part of the throat.

The throat serves as where those pathways of air and nutrients meet. When one breathes in through the nose or word, the air that comes in always goes through the pharynx. As you might expect, swallowing is a vital element of survival; it allows us to eat and drink.

Our breathing tube, our windpipe or the trachea is not separate from what we use to swallow, the stomach. Air, food, and fluids all travel together down the throat till the windpipe splits apart, exactly around the apple of Adam. Normally, the epiglottis prevents food and water from passing down the windpipe.

To know more about rear visit:

https://brainly.com/question/28464224

#SPJ1

Most star formation occurs in the spiral arms of the Milky Way Galaxy.

Which are the regions of highest density of interstellar gas and dust. These areas of dense gas and dust are the perfect environment for star formation, due to their higher local density which allows them to gravitationally collapse and form stars. The spiral arms of the Milky Way contain a variety of molecular clouds, which are regions of gas and dust that have the potential to form stars. The Milky Way's spiral arms are also home to a variety of star clusters, which are regions of stars that were born from the same molecular cloud at the same time.

learn more about gravitationally Refer: https://brainly.com/question/30875490

#SPJ11

The statement, "Standard sized circuit breakers and fuses include 25, 90, and 350 ampere" is true

The statement, "Standard sized circuit breakers and fuses include 25, 90, and 350 ampere" is true. Standard breakers come in various sizes to protect electrical circuits from damage due to excessive current. Common sizes include 25, 90, and 350 ampere, among others. These breakers help to maintain the safe operation of electrical systems.

Learn more about circuit breakers

brainly.com/question/30795854

#SPJ11

The answer is c. intensity. The intensity of a sound wave is the energy transferred per unit of time (sec) through a unit area normal to the direction of propagation.

This means that the energy of the sound wave is spread out over an area and the amount of energy that is transferred depends on the intensity of the sound wave. The direction of propagation refers to the direction in which the sound wave is traveling.

The intensity of a sound wave is the energy transferred per unit of time (sec) through a unit area normal to the direction of propagation.

Learn more about the sound waves here:brainly.com/question/21995826

#SPJ11

Compared to your piece of gold, your friend's piece of gold would weigh more on their planet due to the higher surface gravity.

The weight of an object is directly proportional to the force of gravity acting on it. Therefore, since the gravity on your friend's planet is higher than on Earth, their piece of gold would weigh more. However, the actual mass of both pieces of gold would remain the same regardless of the gravitational force acting upon them. On Earth, the force of gravity is 9.81m/s^2, which means that it pulls objects towards the planet with a greater force than the planet with 1.63m/s^2 surface gravity. Therefore, your friend's piece of gold will be heavier because it is being pulled with a greater force.

To learn more about gravity click here https://brainly.com/question/31321801

#SPJ11

The rate of ventricular conduction is best determined by the QRS complex on an ECG:

An electrocardiogram (ECG) is a non-invasive test that records the electrical activity of the heart over time using electrodes placed on the skin.

The QRS complex is one of the components of the ECG waveform.

It represents the depolarization of the ventricles, which is the electrical activity that causes the ventricles to contract and pump blood out of the heart.

The duration of the QRS complex can be measured in milliseconds (ms) using calipers or a ruler on the ECG tracing.

The QRS complex duration should be less than 0.12 seconds (120 ms) in a normal ECG.

The heart rate or the rate of ventricular conduction can be determined by measuring the time interval between successive QRS complexes.

This time interval is called the R-R interval, and it represents the time it takes for the ventricles to depolarize and contract again.

The heart rate can be calculated by dividing 60 seconds by the R-R interval in seconds. For example, if the R-R interval is 0.8 seconds, the heart rate would be 75 beats per minute (60/0.8=75).

In addition to the QRS complex, other components of the ECG waveform can also be used to determine the heart rate, such as the P wave (which represents the depolarization of the atria) and the T wave (which represents the repolarization of the ventricles).

However, the QRS complex is considered the most reliable and accurate indicator of the rate of ventricular conduction.

Overall, the QRS complex on an ECG is the best indicator of the rate of ventricular conduction because it represents the electrical activity that causes the ventricles to contract and pump blood out of the heart.

By measuring the duration and timing of successive QRS complexes, the heart rate or the rate of ventricular conduction can be accurately determined.

To know more about  ventricular conduction visit link :

https://brainly.com/question/15818154

#SPJ11

If electrons are moving in a magnetic field, their direction depends on the orientation of the magnetic field and the charge of the electron. The direction can be determined using the right-hand rule.  For electrons, which have a negative charge, you should use the left-hand rule instead.

If the electrons are moving parallel to the magnetic field, there will be no force exerted on them, since the angle between their velocity vector and the magnetic field vector is zero. Therefore, the direction of the electrons will not be affected by the magnetic field.

If the electrons are moving antiparallel to the magnetic field, the force exerted on them will be in the opposite direction to the force exerted on electrons moving parallel to the magnetic field. Therefore, the direction of the electrons will be affected by the magnetic field, and will be opposite to the direction predicted by the right-hand rule.

If the magnetic field is oriented perpendicular to the direction of the current flow, the force exerted on the electrons will be perpendicular to both the current flow and the magnetic field. In this case, the direction of the force and the resulting electron flow can be determined using the right-hand rule.

Learn more about right-hand rule here:

https://brainly.com/question/9750730

#SPJ11

If the electrons are moving parallel to the magnetic field, then they will not experience any force due to the magnetic field.

This is because the magnetic field only exerts a force on moving charged particles that are perpendicular to the direction of the magnetic field lines.

If the electrons are moving perpendicular to the magnetic field, then they will experience a force due to the interaction between their electric charge and the magnetic field. This force is known as the Lorentz force and is given by the equation:

F = q(v x B)

where F is the force, q is the electric charge of the particle, v is the velocity of the particle, and B is the magnetic field vector.

In this case, the electrons will move in a circular path around the magnetic field lines, with the direction of the circular motion depending on the direction of the magnetic field and the charge of the electron.

To determine the direction of the circular motion, we use the right-hand rule.

The right-hand rule states that if you point your right thumb in the direction of the velocity vector (v) and your fingers in the direction of the magnetic field vector (B), then your palm will face in the direction of the force vector (F).

So, if the magnetic field is pointing upwards and the electrons are moving towards you, then the direction of the circular motion would be clockwise.

If the electrons are moving away from you, the direction of the circular motion would be counterclockwise.

If the magnetic field is pointing downwards, the direction of the circular motion would be reversed.

In summary, if the electrons are moving parallel to the magnetic field, they will not experience any force due to the magnetic field.

if they are moving perpendicular to the magnetic field, they will move in a circular path around the magnetic field lines, with the direction of the circular motion depending on the direction of the magnetic field and the charge of the electron.

To know more about Lorentz force :

https://brainly.com/question/15552911

#SPJ11

The kinetic energy of the mass is a maximum both when the spring is most compressed and when the spring is most stretched.

This is because at these points, the spring is exerting the maximum force on the mass, causing it to accelerate and reach its maximum kinetic energy. When the spring is at its unweighted length, there is no force being applied to the mass by the spring, so the kinetic energy is not at its maximum.

The kinetic energy of the mass is at its maximum when the spring is at its unweighted length (when it isn't stretched or compressed). At this point, all the potential energy stored in the spring has been converted into kinetic energy, resulting in maximum motion of the mass.

To know more about kinetic energy click here .

brainly.com/question/26472013

#SPJ11

Answer:

particles will gain more energy

Explanation:

Hope this helps! =D

The correct answer is d. an organization's nationality is held strongly in consciousness. Globalization is the process of increasing interconnectedness and interdependence among individuals, businesses, and countries worldwide.

It involves the breaking down of national boundaries and creating a borderless world where goods, services, and people can move freely. As a result, there is increased competition between workers from different countries, but the emphasis on an organization's nationality is reduced in the face of globalization.
Globalization implies all of the following except

d. an organization's nationality is held strongly in consciousness

To know more about Organization's click here .

brainly.com/question/13278945

#SPJ11

True, A conductor's ampacity can vary throughout its length due to factors such as ambient temperature, the number of conductors in a cable, and insulation type.

The National Electric Code (NEC) allows for the use of greater ampacity if the length of the lower ampacity portion is no longer than 10 feet or 10% of the length of the circuit conductors, whichever is shorter.

This provision is predicated on the idea that the heat created by the higher ampacity part will be dispersed across the length of the lower ampacity segment, resulting in no overheating or conductor damage.

Learn more about the ampacity at

https://brainly.com/question/30312780

#SPJ4

Your success as a businessperson is indeed closely connected to your ability to convince others.

In any business, success often depends on the ability to persuade others , whether it's convincing investors to invest in your company, convincing customers to buy your products or services, or convincing employees to work towards a common goal.

Effective persuasion requires a combination of strong communication skills, the ability to understand and address the needs and concerns of your audience, and the ability to build trust and credibility.

Some specific techniques for effective persuasion include:

1) Tailoring your message to your audience: To be effective, your message needs to resonate with your audience.

This means taking the time to understand their needs, interests, and concerns, and tailoring your message accordingly.

2) Providing evidence and examples: People are often more convinced by evidence and examples than by abstract arguments. By providing concrete evidence and examples to support your message, you can make it more compelling and convincing.

3) Building trust and credibility: People are more likely to be convinced by someone they trust and respect.

Building trust and credibility can involve being transparent and honest, demonstrating expertise and knowledge, and being consistent and reliable.

4) Using storytelling: Stories can be a powerful way to persuade people, as they can help to create an emotional connection and engage people's imaginations.

By telling stories that illustrate your message, you can make it more memorable and persuasive.

Overall, the ability to persuade others is a critical skill for success in business, and mastering the art of persuasion can help you to achieve your goals and build strong relationships with customers, investors, and employees.

To know more about persuasion visit link :

https://brainly.com/question/31349463

#SPJ11

When light travels through a medium, it can take different paths that have different distances and speeds.

However, if the medium has a symmetrical structure, such as a cylindrical shape, the light can follow a path along the center, which is the shortest distance between two points. Although the speed of light along this path is reduced, the overall travel time is also reduced because the distance is shorter.

As a result, the difference in travel times between the different paths is reduced, leading to a more consistent and predictable travel time for the light.

This principle is often used in fiber optic communication systems, where light travels through long, cylindrical fibers to transmit data over long distances with minimal loss of signal strength. When light travels along the center of a medium, it moves a shorter distance compared to light traveling along the edges.

However, this central path may have a reduced speed due to factors like refraction or the properties of the medium. This reduced speed can compensate for the shorter distance, ultimately leading to similar travel times for both central and edge paths. As a result, the difference in travel times between these two paths is reduced.

To learn more about fiber optic click here

brainly.com/question/3902191

#SPJ11

The impedance of the circuit is A. 5.7 Ω,

In order to find the impedance of a series circuit, you can use the formula Z = √(R² + (XL - XC)²), where Z is the impedance, R is the resistance, XL is the inductive reactance, and XC is the capacitive reactance.

Given the values in your question:
R = 4.0 Ω
XC = 21.0 Ω
XL = 17.0 Ω

First, find the difference between the inductive and capacitive reactance:
ΔX = XL - XC = 17.0 Ω - 21.0 Ω = -4.0 Ω

Now, substitute these values into the formula:
Z = √(R² + ΔX²) = √((4.0 Ω)² + (-4.0 Ω)²) = √(16 Ω² + 16 Ω²) = √(32 Ω²)

Z = 5.66 Ω (rounded to 5.7 Ω)

Therefore, the impedance of the circuit is A. 5.7 Ω.

The Question was Incomplete, Find the full content below :

A series circuit has a resistance of 4.0 Ω, a reactance (due to the capacitance) of 21.0 Ω, and a reactance (due to the inductance) of 17.0 Ω. Find the impedance of the circuit.

A) 5.7 Ω

B) 27 Ω

C) 8.0 Ω

D) 42 Ω

know more about impedance here:

https://brainly.com/question/31369031

#SPJ11

The link margin needed is equal to the difference between the EIRP of the jammer signal and the transmitting terminal EIRP = EIRP(jammer) - EIRP(transmitted).

A wireless link budget, in general, predicts the potential losses that the signal being transmitted might experience and makes adjustments to the design parameters to mitigate the consequences of such losses. EIRP is frequently used to define the transmission power level needed in wireless connection budget estimates.  The power transmitted by an isotropic source is used as the reference by the EIRP. EIRP combines the transmitting antenna's gain and power. EIRP is calculated as the product of the transmitting antenna's power and gain. A comparison is made between the power radiated and gain of an isotropic source and the product of the power radiated and gain of a realizable antenna. A source that is isotropic radiates uniformly in all directions has a gain of one.

The link margin value that must be achieved to force an enemy jammer at equal distance to a receiving link 16 terminal to use 128 times more power than the transmitting terminal is the ratio of the equivalent isotropically radiated powers (EIRP) of the two signals (the transmitted and the jammer signal). 128 =  [tex]\frac{(EIRPjammer) }{(EIRPtransmitted)}[/tex]. Therefore, the link margin needed is equal to the difference between the EIRP of the jammer signal and the transmitting terminal EIRP = EIRP(jammer) - EIRP'(transmitted).

To know more about signals, visit:

https://brainly.com/question/14699772

#SPJ1

The frequency heard by the observer is lower than the source.

When a sound source departs from a stationary observer, the sound waves are stretched out or compressed depending on the relative motion of the observer and the source. This effect is known as the Doppler effect.

If the sound source is moving away from the observer, the distance between successive wave crests (or troughs) is increased, resulting in a longer wavelength. Since the speed of sound in air is constant, the frequency of the sound wave must decrease to compensate for the longer wavelength. This means that the frequency heard by the observer will be lower than the source.

In conclusion, if a sound source departs from a stationary observer, the frequency heard by the observer will be lower than the source due to the Doppler effect.

To know more about frequency, visit;

https://brainly.com/question/254161

#SPJ11

The work done against friction is-100 J

The work done against friction is equal to the difference between the work done by the applied force and the increase in potential energy:

Work done by applied force = force x distance x cos(theta)

where theta = angle between the incline and the horizontal plane.

W = 50 N x 8 m x cos(θ)

The increase in potential energy is given as 300 J.

The work done against friction is given by:

W = ΔE - Wp

where ΔE = change in potential energy and Wp = work done by the person (50 N force over 8 meters).

W = 300 J - (50 N × 8 m)

W = 300 J - 400 J

W = -100 J

The work done against friction is negative, indicating that the force of friction is acting in the opposite direction of motion.

Find out more on work done here: https://brainly.com/question/8119756

#SPJ1

The correct answer is d. aluminum. Beta radiation consists of high-energy electrons that can be stopped by materials with moderate levels of atomic number and density, such as aluminum.

Lead is a better shield against gamma radiation, while glass and plastic can stop alpha radiation.

An electron current with a kinetic energy between 0.2 MeV and 3.2 MeV that is released at a rate faster than the speed of light is known as beta radiation. Less than 200 ion pairs typically form in each centimetre of air passage due to the fact that interactions between -particles and the atoms of pass-through materials occur much less frequently than interactions between 5×10⁵-particles due to their lower mass, which is approximately 5.5×10₄ amu (9.13010(24)g).

An extremely high energy positron or electron is generated during the beta radioactive disintegration of a nucleus. Beta radiation is another name for this emitted particle.

Learn more about Beta radiation  here

https://brainly.com/question/16645044

#SPJ11

The given statement "A thin sheet of paper will stop a beta particle" is a false statement because A high-energy electron or positron known as a beta particle is unlikely to be stopped by a thin sheet of paper.

To know more about beta

https://brainly.com/question/2848956

#SPJ4