The Boston Tea Party was an act of civil disobedience by those who believed the Crown to be abusing its power to do what?

Answers

Answer 1

They were upset because the British were taxing them without any represeetatio in paliatment.


Related Questions

kohlberg developed a theory of moral reasoning in which the initial _____ level focused on rewards and punishments and the final _____ level emphasized moral principles.

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Kohlberg developed a theory of moral reasoning in which the initial Preconventional level focused on rewards and punishments and the final Postconventional level emphasized moral principles.

Kohlberg's theory of moral development is a six-stage model that expands on the thinking of the Swiss psychologist Jean Piaget. Kohlberg proposed that individuals went through six stages of moral development, each of which represented a more advanced level of ethical reasoning. The theory was focused on the thought processes that lead to moral behavior rather than on actual behavior. According to Kohlberg, moral development is a lifelong process that is influenced by both cognitive and environmental factors.

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Photons making an image formed with feeble light arrive __________.
a) in spurts
b) independently
c) all at once
d) in an interconnected way

Answers

(b) The photons making an image formed with feeble light arrive independently, meaning they arrive separately and do not depend on the arrival of other photons.

What is feeble light?

When feeble light is used to form an image, the individual photons that constitute the light arrive independently at the image formation process.

Feeble light refers to light that is very weak or dim, composed of a low number of photons. In this scenario, the photons do not arrive in spurts or all at once, nor are they interconnected.

Instead, they arrive independently, meaning that each photon arrives separately and does not rely on the arrival of other photons. This behavior is a fundamental characteristic of light, as photons are discrete particles that can be treated individually.

Each photon carries energy and contributes to the formation of the image, and their independent arrival allows for the gradual construction of the image as more photons reach the imaging system.

Therefore, option (b) independently is the correct answer.

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for each of the following languages, give two strings that are members and two strings that are not members—a total of four strings for each part. assume the alphabet σ = {a,b} in all parts.

Answers

Here are the four strings (two members and two non-members) for each of the following languages, with the alphabet σ = {a,b}

Language:

{w | w has an even number of a's}Members aa, babbNon-members a, bab

Language:

{w | w has an even number of a's and an odd number of b's}

Members:

baaab, aaabbNon-members ba, aaaa

Language:

{w | w has an odd number of a's and an even number of b's}

Members:

ab, aabbNon-members bbb, aa

Language:

{w | w has an odd number of a's and an odd number of b's}Members  ababab, bababNon-members: bbb, aaaaaa

About Alphabet

The alphabet is a writing system based on the symbols of vowel and consonant phonemes. The word alphabet is taken from the Greek language, from the first two letters of their writing, namely alpha and beta and alphabet is a set of graphics or characters used to represent the phoneme structure of a language. The phoneme itself means the smallest unit of sound capable of showing contrast in meaning.

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Help with give brainless show work

Help with give brainless show work

Answers

Answer:

1. 4.5

2. 14.66 (a typical us foortball field is 120 yards. a mile is 1760, so 1760/120=14.66

3. 48.28 kilometers

4. 113.49104 miles per gallon

5. 95.3333

Explanation:

i think its right lemme now if im wrong thank you!! :)

A parallel-plate capacitor has circular plates of 10 cm radius and a separation of 120 mm.
assume €0= 8,85 x 10^-12 F/m, 1m = 100cm and 1m = 1000mm

Answers

A parallel-plate capacitor with circular plates of 10 cm radius and a separation of 120 mm has a capacitance of 9.27 pF.

The capacitance of a parallel-plate capacitor is directly proportional to the area of the plates and inversely proportional to the separation between the plates. This is because the larger the area of the plates, the more charge can be stored on them.

The smaller the separation between the plates, the stronger the electric field between them, and the more charge can be stored. In this case, the capacitance is relatively small because the separation between the plates is relatively large. If the plates were brought closer together, the capacitance would increase.

This can be calculated using the following formula:

C = (epsilon_0 * A) / d

where:

* C is the capacitance in Farads

* epsilon_0 is the permittivity of free space (8.85 x 10^-12 F/m)

* A is the area of the plates in square meters

* d is the separation between the plates in meters

In this case, the area of the plates is pi * (10 cm)^2 = 78.54 square centimeters, and the separation between the plates is 0.12 m. Substituting these values into the formula, we get:

C = (8.85 x 10^-12 F/m * 78.54 square centimeters) / 0.12 m = 9.27 pF

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stimate how long the Sun would last if it were merely a huge fire that was releasing chemical energy. Assume that the Sun begins with roughly 10^8 joules per kilogram, a chemical energy content typical of atomic matter. Express your answer using one significant figure.

Answers

If the sun were merely a huge fire that was releasing chemical energy then it would last for about 2 x 10⁴ years.

To estimate how long the Sun would last if it were releasing chemical energy, we need to first find out the total chemical energy it possesses.
1. Find the mass of the Sun: The mass of the Sun is approximately \(1.989 \times 10^{30} kg\).
2. Calculate the total chemical energy: Given that the Sun has a chemical energy content of 10⁸ joules per kilogram, we can calculate its total chemical energy by multiplying its mass with the energy content.
Total Chemical Energy = \((1.989 \times 10^{30} \ kg) \times (10^8 \ J/kg) = 1.989 \times 10^{38} J\)

Now, we need to find out how much energy the Sun releases every second.
3. Find the Sun's energy output: The Sun releases about 3.828 x 10²⁶ watts of power. Since 1 watt is equal to 1 joule per second, the Sun releases 3.828 x 10²⁶ J/s.
4. Calculate the time it would take for the Sun to use up its chemical energy: To find out how long the Sun would last, divide the total chemical energy by the energy output per second.
Time = Total Chemical Energy / Energy Output per Second
\(Time = (1.989 \times 10^{38} \ J) / (3.828 \times 10^{26} \ J/s) = 5.2 \times 10^{11}\  s\)
5. Convert the time to years: There are about 31,536,000 seconds in a year, so we can convert the time to years.
\(Time = (5.2 \times 10^{11} s) / (31,536,000 \ s/year) = 1.6 \times 10^4\  years\)

Using one significant figure, the Sun would last for about 2 x 10^4 years if it were merely a huge fire releasing chemical energy.

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If the Sun were merely a huge fire that was releasing chemical energy, then it would last for 25,000 years. This is assuming that the Sun begins with roughly 108 joules per kilogram, a chemical energy content typical of atomic matter. Hence, the correct option is (C) 25,000 years.How long would the Sun last if it were simply a huge fire releasing chemical energy?To calculate the lifespan of the Sun in such a situation, we first need to determine how much energy the Sun has. It has roughly 104 Joules per gram. If the Sun were made of atomic matter, this would be a typical chemical energy density. It's necessary to convert the mass into energy by multiplying it by the energy density.So, the total amount of energy in the Sun can be calculated as follows: Mass of Sun * Energy density= 2.00 x 10^30 kg x 10^8 J/kg= 2.00 x 10^38 JThe Sun radiates energy at a rate of 3.846 × 1026 W. The lifespan of the Sun in such a situation can be determined by dividing the total energy by the power generated by the Sun.Lifespan of Sun = Total energy generated/Rate of energy generation= (2.00 x 10^38 J)/(3.846 x 10^26 J/s)= 5.20 × 1011 seconds= 16,500 yearsHowever, this estimate is solely based on the energy produced by the Sun in the form of light and heat. There are several factors that contribute to the Sun's longevity, including nuclear fusion and other factors. These variables have a significant impact on the Sun's life expectancy.

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a concave makeup mirror is designed so that a person 23 cm in front of it sees an upright image magnified by a factor of 4. what is the radius of curvature of the mirror?

Answers

The radius of curvature of the concave makeup mirror is 230 cm.

To calculate the radius of curvature of the concave makeup mirror, we can use the mirror equation:

1/f = 1/v - 1/u,

where:

f = focal length of the mirror,

v = image distance,

u = object distance.

In this case, the person is 23 cm in front of the mirror, which means the object distance (u) is -23 cm (negative because it is in front of the mirror).

We are given that the person sees an upright image magnified by a factor of 4. Since the image is upright, the magnification (M) is positive. We can use the magnification formula:

M = -v/u,

where M = 4.

Substituting the values into the magnification formula, we get:

4 = -v/(-23),

Simplifying, we have:

4 = v/23.

Solving for v, we find:

v = 4✕ 23,

v = 92 cm.

Now, we can substitute the values of v and u into the mirror equation:

1/f = 1/92 - 1/(-23).

Simplifying, we have:

1/f = (1 + 4)/92,

1/f = 5/92.

To find the radius of curvature, we use the formula:

f = R/2,

where R is the radius of curvature.

Substituting the values, we get:

1/R = 2/5 ✕ 1/92,

1/R = 2/460,

R = 460/2,

R = 230 cm.

Therefore, the radius of curvature of the concave makeup mirror is 230 cm.

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George weighs 200 lb. what is his weight in Newtons (think metric, ha ha 1 kg=2.2 lb)

Answers

Answer:

889.644 newton

Explanation:

multiply the pound value by 4.448

Please Help!


30. A duck flying due east passes over Atlanta, where the magnetic field of Earth is 5.0 x 10-5 T directed north. The duck has a positive charge of 4.0 x 10-8 C. If the magnetic force acting on the duck is 3.0 x 10-11 N upward, what is the duck's velocity?​

Answers

Answer:

5 m/s

Explanation:

hope it helps:) u're welcome

The velocity of the duck must be 15 m/s towards the east which is explained below.

Magnetic force:

The force on a moving charge with some velocity under a magnetic field is given by:

F = qv×B

here q is the charge on the object

v is the velocity of the object

B is the magnetic field

v×B gives the direction of the force

B is towards the north, and Force is directed upwards, then velocity v should be towards the east.

3×10⁻¹¹ = 4×10⁻⁸× v × 5×10⁻⁵

v = 15 m/s

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a hydraulic has two pistons. the area of piston 1 is eleven times smaller than the area of piston 2. if a pressure of 98 atm is applied to piston 1, how much pressure will piston 2 experience as a result?

Answers

The pressure will piston 2 experience as a result is 8.99atm if area of piston1 is eleven times smaller then area of piston 2.

We know very well pressure is inversely proportional to area.It means when we increase pressure, then area will decrease or vice-versa.

Equation of pressure is given by P=F/A.

Now,it is given that area of piston 1 is 11 times smaller than area of piston 2.It means if we assume area of piston 1 is A.

Then area of piston 2 is 11 times of area of piston 1 which is 11A.

Now, writting the expression

=>P₁/P₂ = (F/A₁) / (F/A₂)

=>P₁/P₂ = A₂/A₁

So, we have P₁=98atm,A₂=11A,A₁=A and we need to find P₂=?

So, on putting the values,we get

=>98/P₂=11A/A

=>98/P₂=11

=>P₂=98/11

=>P₂=8.99atm

Hence, pressure will piston 2 experience is 8.99atm.

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What does the pneumotachograph measure and and how does it measure it?

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A pneumotachograph is a device that measures airflow during human or animal respiration. It specifically measures the amount of air that moves into and out of the lungs per unit of time, which is known as the respiratory flow rate.

The pneumotachograph measures the pressure difference across a flow restrictor in the respiratory circuit. The restrictor creates an obstruction in the airflow, resulting in a pressure drop that can be measured. The pneumotachograph can calculate the flow rate of air by measuring the pressure difference and knowing the characteristics of the flow restrictor.

Typically, a flow restrictor is made up of a series of screens or grids with small openings through which air must pass. Turbulence is created as air flows through these openings, which can be measured to determine flow rate.

In clinical settings, pneumotachographs are commonly used to assess respiratory function in patients with lung diseases or other respiratory conditions. In addition, they are used in research settings to investigate respiratory physiology and the effects of various interventions on respiratory function.

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A sound wave is an example of a _____ wave.

longitudinal
fluid
transverse
reverse

Answers

Answer:

longitudinal wave

OK hope this will help you

What is potential energy? Give at least three examples, and explain why they have potential energy.

Answers

Answer:

Energy stored in an object due to its position is Potential Energy. · Energy that a moving object has due to its motion is Kinetic Energy.

Explanation:

Answer:

To summarize, potential energy is the energy that is stored in an object due to its position relative to some zero position.

Holding a bow and arrow before shooting, The amount of energy stored before you race on track, And a roller coaster going to it's highest point staying there waiting to come down.

A simple 15.2 cm reflecting telescope can achieve 1 second of arc resolution for visible light. Many radio telescopes study a particular radio wavelength of 21 cm. Complete parts a −d using the above information. a. Use the Raleigh criteron to determine how large a radio telescope aperature must be to achieve this resolution at 21 cm. b. Why must the aperture of a radio telescope be much larger than that of an optical telescope? c. Why is it possible to resolve two predominantly blue stars when the same telescope can not resolve two simarily separated red stars? d. In the galaxy pictures of 5 b, which photograph corresponds to the largest aperture?

Answers

a)The aperture size of the radio telescope needs to be approximately 0.27 meters b)The aperture of a radio telescope needs to be much larger than that of an optical telescope because radio waves have much longer wavelengths compared to visible light. c)the resolving power of a telescope depends on the ratio of the wavelength of light.

a. To determine the aperture size of a radio telescope to achieve a resolution at 21 cm, we can use the Rayleigh criterion, which states that the minimum resolvable separation (δθ) is given by:

δθ = 1.22 * (λ / D)

Where λ is the wavelength of the radiation and D is the diameter of the telescope's aperture.

Given that the radio wavelength is 21 cm (or 0.21 m), and we want to achieve the same resolution as the optical telescope (1 second of arc), we can rearrange the formula to solve for D:

D = 1.22 * (λ / δθ)

D = 1.22 * (0.21 m / 1 second of arc)

Calculating the result:

D ≈ 0.27 m

Therefore, the aperture size of the radio telescope needs to be approximately 0.27 meters to achieve a resolution of 1 second of arc at a wavelength of 21 cm.

b. The Rayleigh criterion tells us that the resolution of an instrument is inversely proportional to the wavelength.

Since radio waves have longer wavelengths, the telescope's aperture needs to be larger to achieve the same resolution as an optical telescope. This is because a larger aperture collects more incoming waves and allows for finer spatial detail to be resolved.

c. The ability to resolve two objects using a telescope depends on the size of the aperture relative to the wavelength of the radiation. When it comes to resolving stars, the resolving power of a telescope depends on the ratio of the wavelength of light to the size of the telescope's aperture (λ/D).

Blue light has a shorter wavelength compared to red light. Since the resolving power is directly proportional to the wavelength, a shorter wavelength of blue light allows for better resolution.

Therefore, two predominantly blue stars can be resolved because their shorter wavelength allows for finer detail to be distinguished, while the same separation between two predominantly red stars cannot be resolved due to the longer wavelength.

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3. Find the lateral area of the pyramid to the nearest whole number.
Slant: 40 m
Width: 60 m
Length: 60m

Answers

Answer:

To find the lateral area of a pyramid, we need to calculate the area of each triangular face and then add them together. The lateral area does not include the area of the base.

Explanation: Given the width and length of the base of the pyramid, we can calculate the height using the Pythagorean theorem. The height of the pyramid is the same as the height of each triangular face.

Using the Pythagorean theorem:

height² = slant² - (1/2 × width)²

height² = 40² - (1/2 × 60)²

height² = 1600 - 1800

height = √200

height = 10√2

The area of each triangular face can be calculated as:

area of triangle = (1/2 × base × height)

area of triangle = (1/2 × 60 × 10√2)

area of triangle = 300√2

Since the pyramid has four triangular faces, the total lateral area is:

lateral area = 4 × area of triangle

lateral area = 4 × 300√2

lateral area ≈ 1,695

Therefore, the lateral area of the pyramid is approximately 1,695 square meters, to the nearest whole number.

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if when the sun comes out a road expands more than the dirt it is on it means​

Answers

Answer:

the road has a larger coefficient of linear expansion than the dirt

What type of energy is stored in chemical bonds of molecules ?

Answers

Answer:

potential energy,

Explanation:

Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy.

The energy stored on the chemical bonds of molecules is chemical energy. When the chemical bonds are broken, the energy is released.

What is chemical energy?

Chemical energy is a form of energy which is stored in the form of chemical bonds. There are various other forms of energy such as electrical energy, mechanical energy, kinetic energy etc.

There are different types of chemical bonds such as ionic bonds, covalent bonds, metallic bonds etc. Each type of bond are of different bond strength and energy.

Molecules are formed by the combination of atoms through chemical bonding. Chemical energy is stored within the bonds and this energy releases when the bond breaks.

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Question 6:A particle of mass 0.2 kg is moving in a straight line at speed 2.5ms, a constant force of magnitude FN is applied to it in the direction in which it is moving. The speed of the particle 5 seconds later is 4.5ms Find the value of F, magnitude of the force applied.

Answers

First, let's calculate the particle acceleration, using the formula below:

\(\begin{gathered} V=V_0+a\cdot t \\ 4.5=2.5+a\cdot5 \\ 5a=4.5-2.5 \\ 5a=2 \\ a=\frac{2}{5}=0.4\text{ m/s}^2 \end{gathered}\)

Now, to find the force applied, let's use the second law of Newton:

\(\begin{gathered} F=m\cdot a \\ F=0.2\cdot0.4 \\ F=0.08\text{ N} \end{gathered}\)

Therefore the value of F is 0.08 N.

when sodium is heated, a yellow spectral line whose energy is 3.37 x 10-19 j is produced. what is the frequency of this light? what is the wavelength of this light?

Answers

The frequency of the sodium light is  50.86(s)⁻¹  and the wavelength of the sodium light is 5.898  x10⁻⁷m .

We are given that,

The energy of sodium light is = ΔE = 3.37 × 10⁻¹⁹J

Therefore, to get the frequency and the wavelength of the sodium light

by the equation which is given as,

ΔE = (hc)/λ

Where, h is the plank constant which is  6.626 x 10⁻³⁴ J, c is the velocity of light i.e.3×10⁸m/s  , λ is the wavelength of the light which we have to calculate as,

λ = (hc)/ ΔE

λ = ( 6.626 x 10⁻³⁴ J-sec)(3×10⁸m/s)/(3.37 × 10⁻¹⁹J-sec)

λ = 5.898  x10⁻⁷m

The frequency f of sodium light can be calculated by,

f = c /λ

f = (3×10⁸m/s)/( 5.898  x10⁻⁷m)

f = (0.5086 × 10¹⁵)s⁻¹

f = 50.86(s)⁻¹

Therefore, the frequency of the sodium light would be 50.86(s)⁻¹  and the wavelength of the sodium light would be 5.898  x10⁻⁷m .

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A point charge +Q is fixed on a very large horizontal frictionless tabletop. A second point charge +q is released from rest near the stationary charge and is free to move. Which statement best describes the motion of +q after it is released?
Its speed will be greatest just after it is released.
As it moves farther and farther from +Q, its speed will decrease.
Its acceleration is zero just after it is released.
As it moves farther and farther from +Q, its speed will keep increasing.
As it moves farther and farther from +Q, its acceleration will keep increasing.

Answers

The statement "A point charge +Q is fixed on a very large horizontal friction less tabletop. A second point charge +q is released from rest near the stationary charge and is free to move" is correct because When the second charge, +q, is released near the stationary charge +Q, it experiences an electrostatic force due to the interaction between the charges. According to Coulomb's law, the electrostatic force between two point charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.So option 2 is correct.

Initially, when +q is released, it experiences a force of attraction towards +Q due to the opposite charges. This force accelerates +q in the direction of +Q. As +q moves away from +Q, the distance between them increases, and according to Coulomb's law, the force between them decreases because the inverse square law causes the force to weaken with distance.

However, the acceleration of +q increases as it moves farther away because the force acting on it is inversely proportional to its distance from +Q. Since the force is decreasing with distance at a slower rate than the distance is increasing, the acceleration keeps increasing.

Therefore, statement 2) is the most accurate description of the motion of +q after it is released.



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What is the crossover point in miles between the hybrid vehicle and the alternative vehicle from a competing auto​ manufacturer? Hybrid Vehicle Vehicle Purchase Cost ​$18 comma 000 Vehicle Operating Cost per Mile ​$0. 14 Useful Life of Vehicle 14 years Miles per Year 16 comma 500 Miles per Gallon 33 Average Fuel Price per Gallon ​$3. 68 Alternative Vehicle Vehicle Purchase Cost ​$20 comma 000 Vehicle Operating Cost per Mile ​$0. 10 Useful Life of Vehicle 14 years Miles per Year 16 comma 500 Miles per Gallon 36 Average Fuel Price per Gallon ​$3. 68 The crossover​ point, M, is nothing miles ​(round your response to the nearest whole​ number)

Answers

The crossover point is 56,000 miles, rounded to the closest whole number. The total cost of owning the hybrid vehicle and the alternative vehicle is the same at this point.

The formula for the total cost is :

Total Cost = Vehicle Purchase Cost + (Operating Cost per Mile x Miles per Year x Useful Life of Vehicle)/Miles per Gallon x Average Fuel Price per Gallon

For the hybrid vehicle:

Total Cost = $18,000 + ($0.14 x 16,500 x 14)/33 x $3.68 = $47,672.03

For the alternative vehicle:

Total Cost = $20,000 + ($0.10 x 16,500 x 14)/36 x $3.68 = $47,672.22

Solving these two equations for M gives :

$18,000 + ($0.14 x 16,500 x 14)/33 x $3.68 = $20,000 + ($0.10 x 16,500 x 14)/36 x $3.68

M = 55998

If the vehicle's expected mileage exceeds 56,000 miles, the alternative vehicle becomes more cost-effective; if it falls below 56,000 miles, the hybrid vehicle becomes more cost-effective.

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what do atoms gain, lose, or share when they boned

Answers

Electrons can be lost, shared or gained when bonding

Answer:

Explanation:

An atom losses or gains electrons to fill the outermost shell. In this process , ionic bonds are formed. Chemical bonds are formed when electrons are shared.

what is latent inhibition? the time it takes to move from a broad idea to a specific idea that can be implemented

Answers

An individual's capacity to notice and learn about a stimulus is diminished if they have previously been exposed to it in a neutral or irrelevant environment. This phenomenon is known as latent inhibition.

With the use of traditional training procedures, latent inhibition is frequently examined. In a typical experiment, an individual or an animal is repeatedly exposed to an unimportant stimulus with no noticeable results. In following trials, the neutral stimulus is coupled with a physiologically important stimulus (such as food or an electric shock).

The goal is to determine how the subject's capacity to build an association between the neutral stimulus and the important stimulus is affected by the subject's prior exposure to the neutral stimulus. According to the phenomena of latent inhibition, prior exposure to a stimulus without any discernible effects results in a reduction in attention or learning when the stimulus is subsequently encountered in a pertinent context.

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5. Find the velocity of a train that traveled 75 km in 35 minutes. (answer
in m/s). Conversion factors: 1000 m = 1 km; 60 s = 1 min.

Answers

75km=75000m

35min=2100 seconds

Velocity=Displacement/Time

=75000/2100

=750/21

=35.71 m/s

How much weight is generated by an 80 kg person on planet earth? On the moon?

Answers

It will be 133 on the moon

Which best describes Earth's magnetic pole?
A.) Aligned with the geographic South Pole
B.) Circling around the geographic North Pole
C.) Defined by Earth's rotation
D.) Wandering slowly with no pattern

Answers

Answer:

Wandering Slowly with no pattern

Explanation:

I apologize to those who got it wrong from the first person.

The Earth's magnetic pole is wandering slowly with no pattern. Then the correct option is D.

What is the magnetic pole?

Magnetic poles are the points near the extremities of the axis of rotation of the Earth or another celestial body where a magnetic needle dips vertically.

At either end of a magnet, the magnetic pole is where the applied magnetic field is strongest. An imaginary basic particle known as a magnetical monopole may be referred to as a magnet's pole. A unique type of magnet is the magnetism poles of celestial bodies.

The north magnetism pole of the earth Today is located where the north arrow is on a path leading downhill.

The magnetic pole is located far away from the geographic pole.

Earth's magnetic pole is defined as wandering slowly with no pattern.

Thus, the correct option is D.

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10 a body, with a constant resistance to motion of 20 n, has a mass of 18 kg. a . force which decreases at a uniform rate from 60 n to 35 n during 25 s, is applied on the body. calculate the change in velocity of the body during the first 20 s

Answers

The change in velocity  with a constant resistance of the body during the first 20 s =  -10/9 ms⁻¹

The change in velocity of the body during the first 20 s = 10/9

Mass = 18 kg.

Resistance to motion = 20 N

Decreases at a uniform rate from 60 N to 35 N

time =  25 s,

Force which decreases at a uniform rate = (60 - 35)/25 = 25/25

                                                                                             = 1 NS⁻¹  

Initial velocity,

   F = p/t

       = mv/t = 18*v/t

V = (60 - 20) /18 = 20/9

Final velocity,

   Decreases at a uniform rate =        = 1 NS⁻¹  

  at 20 s = 20 N decrease

total force applied at 20 s without resistance = 60 -20-20 = 20.

      V final   =       20/18 = 10/9

Change in velocity  =  V final   - v initial

                                 =   10/9 - 20/9

                                 = -10/9

Resistance is described as a refusal to provide in or to something that slows down or prevents some thing. An instance of resistance is a toddler combating against her kidnapper. An instance of resistance is wind against the wings of a aircraft.

The unit of the electrical resistance, measured with direct present day, is the ohm (Ω), named after the German physicist and mathematician Georg Simon Ohm. in step with ohm's regulation, the resistance R is the ratio of the voltage U across a conductor and the modern R = U / I.

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Power of convex lens is 10 Dioptre kept contact with concave lens of power -10 dioptre. Find combined focal length.​

Answers

The combined focal length of a convex lens and a concave lens in contact, with powers of 10 Dioptre and -10 Dioptre respectively, is 0.05 m.

Given that power of the convex lens is 10 Dioptre is kept in contact with the concave lens of power -10 dioptre. We need to find the combined focal length. Firstly, let's recall the formula for calculating the power of a lens:  P = 1/f  where P is the power of the lens and f is the focal length of the lens.  Now, let's calculate the focal lengths of the given convex and concave lenses: Focal length of convex lens = 1/10 = 0.1 m. The focal length of the concave lens = -1/-10 = 0.1 m (negative sign indicates that the lens is concave) To find the combined focal length, we use the formula:  1/f = 1/f1 + 1/f2 - d/f1f2  where f1 and f2 are the focal lengths of the two lenses and d is the distance between the lenses. Since the two lenses are in contact, d = 0. Plugging in the values, we get: 1/f = 1/0.1 + 1/0.1 = 20 Therefore, f = 1/20 = 0.05 m. Hence, the combined focal length is 0.05 m. Summary: The given problem is to calculate the combined focal length of a convex lens and a concave lens when in contact. The power of the convex lens is given as 10 Dioptre and that of the concave lens is -10 Dioptre. Using the formula for calculating the power of the lens, we get the focal lengths of both lenses. Then, we use the formula for combined focal length to get the final answer. The solution to this problem is f = 0.05 m.

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Keeping the ending level at 2, try different starting orbits.What happens to the wavelength of the photon when the difference is small?When it is large?

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When the difference is small, that is the starting orbit is just one level above the ending orbit, the wavelength of the photon will have a relatively small value.

Atomic emission is the process of light emission from an atom that occurs when the atom gets excited by either heating, bombarding with electrons, or a discharge of electric current. When an atom is excited, the electrons gain energy and move to a higher energy level or shell. When they return to the lower energy state, they emit energy in the form of electromagnetic radiation or light.

The energy of the emitted photon or light is directly proportional to the difference in the energy levels of the atom before and after the emission process. The relationship is given by:E=hfwhere E is the energy of the emitted photon, h is the Planck's constant, and f is the frequency of the emitted photon. The frequency of the emitted photon can be calculated using the formula:f=c/λwhere c is the speed of light and λ is the wavelength of the photon.

Thus, for an atom to emit radiation of a particular wavelength, the difference in energy levels of the atom must correspond to that wavelength. If the difference is small, the wavelength of the emitted photon will also be small, and if the difference is large, the wavelength of the emitted photon will be large.

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The helium that fills a balloon is an example of which state of matter? (1 point)

a
Solid

b
Liquid

c
Gas

d
Plasma

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Gas pls mark the brainleiest
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