what is the minimum kinetic energy in electrovolts that an electron must have while traveling inside a slab of

Answer:

Newton's Third Law states that "For every action, there is an equal and opposite reaction." An example of this law is the following scenario:

Imagine you are pushing a heavy box across the floor. According to Newton's Third Law, the box will exert an equal and opposite force back on you, making it harder to push. The more force you apply to the box, the greater the force it will exert back on you. This reaction force is what makes it difficult to push the box. The same idea applies when jumping off a diving board or jumping on a trampoline - the force you apply to the board or trampoline is equal and opposite to the force it applies back on you.

Answer:

Yes

Explanation:

Example of ionic bonding takes place between magnesium(mg) and oxygen(02) to form magnesium oxide (mg0).... Magnesium loses two electrons to form Mg2+, and oxygen gains two electrons to form 02-

Hi,

Persuasive writing "is a sound argument of a position backed up with facts, details, examples, and one additional element-appeal".

In the choices there are only 3 answers who appeal to this definition:

1.  Banning all video games is not the answer to reducing violence in our society. People argue that violent games harm our culture and should be banned. However, this action would go against the freedom of choice.

2. The New York Times reports that over a million students in the United States are now taking courses online. Online learning may be more convenient for students and teachers. However, it appears to be just an attempt by schools to save money.

3. We must act to preserve the rain forests of the Amazon. According to the World Wildlife Fund, 17 percent of the rain forest has been cleared in the past 50 years.

XD

Given data:

* The distance traveled is 346 m.

Solution:

Let m be the mass of the body.

Then, the gravitational potential energy of the body on reaching the top of the tower is,

where g is the acceleration due to gravity, and h is the height of the tower,

As mg is the weight of the body.

Substituting the known value,

where w is the weight of the body,

When a person walks to the certain height, the internal energy of the person's body is converted into the gravitational potential energy.

Answer:

Explanation: the average kinetic energy of the molecules in a pot of water when heated on a stove will go up or increase according to the kinetic theory of heat. The kinetic theory of heat correlates an increase in temperature with the increase of kinetic energy, therefore, if temperature increases, so will the kinetic energy.

Answer:

The molecules go faster.

Explanation:

The hotter the water is the moer faster the water molecules go.

In the balloon simulation, the red circles represent positive charges.

Electrostatics is the branch of physics that studies electric charges at rest. The interaction between electric charges is the foundation for electrostatics. These interactions can either be repulsive or attractive, depending on the types of charges. Electrostatics plays an important role in many aspects of our daily lives.
For example, we use it in the design of electrical circuits, lightning rods, and particle accelerators. The simulation demonstrates the following electrostatic principles: Like charges repel and opposite charges attract.

Each balloon has an equal amount of positive and negative charges when it is neutral.When a balloon is rubbed, electrons are transferred from one surface to the other, creating an imbalance of positive and negative charges.The excess charge is spread over the surface of the balloon. This charge creates an electric field.

As the balloon is rubbed, some of the electrons from the balloon's surface are transferred to the wool. The balloon becomes positively charged while the wool becomes negatively charged. As the balloon is brought closer to the wall, the positive charges on the surface of the balloon repel the positive charges on the surface of the wall.

This repulsion results in the balloons sticking out from the wall, indicating that the charges on the balloon are repelling the charges on the wall.The red circles in the simulation represent the positive charges.

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Answer:

If I read this correctly the main scale reads 49 mm = 4.9 cm

The vernier divides each mm into 10 parts and the vernier indicates that the final reading is 8/10 ths between 49 mm and 50 mm

Thus the final reading is 49.8 mm = 4.98 cm

Mexican food has become popular worldwide because of its unique flavors and deliciousness. When eating Mexican food, people have different preferences on where to eat, and some prefer to order a salsa.

A survey on people's favorite Mexican restaurant and their preference for ordering salsa may yield biased results due to various reasons. Biased results are those that are not accurate and do not reflect the actual views of the respondents. Therefore, some of the reasons that may cause the survey to yield biased results are as follows: Sampling errors: A survey may be biased if the sampling of participants is not done well. A biased sampling may involve picking people who have similar views, leading to false results. Questionnaire: If the survey questionnaire contains questions that are subjective and not well understood by the participants, then the answers given may be biased. The questions should be specific and clear.Respondents: The results may be biased if the people who participate in the survey have a specific mindset. For instance, if a group of people who are vegetarian participate in the survey, their answers may be biased towards vegetarian foods.Misinterpretation of answers: Survey results may be biased if the surveyor misinterprets the answers given by the participants or if the participants give ambiguous answers.In conclusion, the survey on people's favorite Mexican restaurant and their preference for ordering salsa may yield biased results. The surveyors need to be careful when selecting the participants, preparing the questionnaire, interpreting the results, and analyzing the data.

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when investing in RSA retail saving bonds, investors should consider interest rates, investment term, risk, and liquidity. It is recommended that investors conduct thorough research and seek professional advice before making any investment decisions.

Firstly, it is important to consider the current interest rates being offered on the bonds. This will help investors determine the potential returns they can expect to earn on their investment.

Another factor to consider is the length of the investment term. RSA retail saving bonds are available in a variety of terms, ranging from 2 to 5 years.

It is also important to consider the level of risk associated with investing in RSA retail saving bonds. While these bonds are considered low-risk investments, there is always a chance that the issuer may default on the bond, resulting in the loss of the investor's principal.

Lastly, investors should consider the liquidity of the investment. RSA retail saving bonds are not easily tradable and may not be suitable for investors who require quick access to their funds.

In summary, when investing in RSA retail saving bonds, investors should consider interest rates, investment term, risk, and liquidity. It is recommended that investors conduct thorough research and seek professional advice before making any investment decisions.

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On Neptune, the object weight is 168 newton.

We need to know about the weight to solve this problem. Weight can be measured by multiplying mass with gravitational acceleration. It can be written as

W = m . g

where W is weight, m is mass and g is the gravitational acceleration.

From the question above, we know that the parameter given is:

m = 15 kg

g = 11.2 m/s²

By substituting the parameters, we can calculate the weight.

W = m . g

W = 15 x 11.2

W = 168 N

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Answer:

64 ohms =R

Explanation:

R is directly proportional to V

R is inversely proportional to I(Current

Answer:

Fluid theories of electricity are outdated theories that postulated one or more electrical fluids which were thought to be responsible for many electrical phenomena in the history of electromagnetism.

I hope it's helpful!

Answer:

True

Explanation:

Incandescence material are those which glow on being heated above a particular point.  For example an incandescence bulb which has a filament. when the filament is heated it starts to glow.

The least energy efficient type of electronic lights typically used in residential buildings are usually called incandescent lamps. Although ineffective, incandescent lamps provide a variety of important advantages, they are inexpensive to purchase, turn on instantly and are available in a wide range of sizes and shapes.

when you carry the 2 and add the 3 its Z

Answer:

(1) - v(t) = 9.18t - 1.12

(2) - a(t) = 9.18 m/s²

Explanation:

We are given the position function, y(t) = 4.59t² - 1.12t + 0.03. We are asked to determine the following:

\(\hrulefill\)

To find the velocity function simply take the derivative of the position function.

y'(t) = v(t) = 9.18t - 1.12

Using the graph we can find the object's initial velocity by pugging in t=0.220 s.

=>  v(0.220) = 9.18(0.220) - 1.12

=>  v(0.220) = 0.8996 m/s \(\hrulefill\)

To find the acceleration function either take two derivatives of the position function or one of the velocity function.

y''(t) = v'(t) = a(t) = 9.18 m/s²

Thus, the object is speeding up with constant acceleration.

Answer:

Given

mass (m) =5kg

velocity (v) =7.3m/s

kinetic energy (k. e) =?

Form

\(k.e = \frac{1}{2} MV {}^{2} \\ = \frac{1}{2} \times 5 \times 7.3 {}^{2} \\ 133.23kj\)

I hope this help

Sputnik 1, the first man-made satellite, was released by the Eastern Bloc on October 4, 1957, as part of the Sputnik project, with Sergei Korolev serving as the program's primary designer.

There are a large number of satellite in use. They serve several functions, including the Satellite Navigation System, amateur radio, television transmission, and weather prediction. In order to conduct studies and acquire data, they also employ telescopes to gaze outwards at the solar system.

Natural and artificial satellite are two distinct categories. The Earth and the Moon are two examples of organic satellites. The Moon orbits the earth while the Earth revolves around the Sun.

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Answer: 10.67

Explanation:

First, we needed to calculate the radius and this will be:

= Diameter / 2

= 0.900km / 2

= 0.450km

Since s = 3.00miles, we need to convert it to kilometers and this will be:

1mile = 1.6km

3 miles = 3 × 1.6km = 4.8km

Radians = s/r = 4.8/0.45 = 10.67

D Solar tide

Explanation:

Because d is closer to the sun

Answer:

it's option 2

Explanation:

Newton's first law states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force

Problem is as follows: Given: Diameter of the cylindrical drum = 7 ft. Height of the cylindrical drum = 2.7 m. Fluid density = 21 lbm/ft³.

Formula used:

Volume of the cylinder = π × r² × h Where, r is radius of the cylinder h = height of the cylinderπ

= 3.1416Formula for mass

= Density × Volume Formula for slug = Mass / (ft / s²)We know that the diameter of the cylindrical drum is 7 ft, so its radius will be: r = d / 2= 7 / 2= 3.5 ft= 1.07 m.

Also, height of the cylindrical drum = 2.7 m Volume of the cylindrical drum

= π × r² × h

= 3.1416 × 1.07² × 2.7

= 9.3944 m³We know that mass

= Density × Volume= 21 × 9.3944

= 196.2784 lbm.

Now, to convert this to slugs, we will use the formula,

slug = Mass / (ft / s²)

= 196.2784 / 32.2

= 6.1 slugs.

Therefore, the total mass in slugs is 6.1 slugs. Hence, option A is the correct answer.

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Answer:

V1 = 700 cos 69.8 i + 700 sin 69.8 j           vector components of V1

V1 = 241.7 i + 656.9 j          in miles/hour

V2 = 620 cos 107  i + 620 sin 107 j

V2 = -181.3 i + 592.9 j

V = V1 - V2 = 423 i + 64 j        rate of planes separation

1.9 V = 803.7 i + 121.6 j     miles   separation of planes after 1.9 hr

D = (803.7^2 + 121.6^2)^1/2 = 812.8 miles

Answer:

condensation, precipitation, evaporation, transpiration

Explanation:

condensation is when gas condenses into liquid, precipitation is when water comes from the sky like in rain, evaporation is when water is converted from liquid to gas, transpiration is when water is evaporated from leaves.

In the given structure, C and D are nucleons as they are at the center or the neucleus of the atom.

the electrons rotate in the orbits around the neucleus.

So A is electron and B is the orbit.

The angle of slope if the sled carrying a 30 kg child which is moving at a constant speed is 12.7°

Given that,

Force, F = 100 N

Mass, m = 10 + 30 = 40 kg

Angle at which the force is applied, θ = 30°

Resolving the force applied into its horizontal and vertical components,

cos θ = \(F_{x}\) / F

\(F_{x}\) = 100 * cos 30° = 100 * 0.866

\(F_{x}\) = 86.6 N

A force due to the weight of the cart is applied on the ground which is directly vertical downwards. But the slope is at an angle. So resolving this force into its horizontal and vertical components.

sin θ = \(w_{x}\) / w

w = m g

w = 40 * 9.8

w = 392 N

Given that the velocity when travelling up the slope is constant. So the acceleration is zero.

Σ \(F_{x}\) = m a = 0

\(F_{x}\) - \(w_{x}\) = 0

\(w_{x}\) = 86.6 N

θ = \(sin^{-1}\) ( 86.6 / 392 ) =  \(sin^{-1}\) ( 0.22 )

θ = 12.7°

Therefore, the angle of slope if the sled carrying a 30 kg child which is moving at a constant speed is 12.7°

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Which receives the most solar radiation?

A the polar zones

B the oceans

C the tempetra zones

D the equator ✅

The maximal static friction force (F) between surfaces in contact prior to motion starting is divided by the normal force (N) to determine the coefficient of static friction. Solving yields a value of 1.08 m/s2.

The maximal static friction force (F) between surfaces in contact prior to motion starting is divided by the normal force (N) to determine the coefficient of static friction.

Static friction's highest value is F s = _s mg.

where _s is the static friction coefficient

50kg is the box's weight in meters.

Gravitational acceleration is equal to 9.81 m/s2.

F s = 0.5×50×9.81 =245 N

The object must be in motion because the applied force exceeds the static friction's maximum value, F s.

As a result, kinetic friction rather than static friction must be considered.

by the equilibrium state

ma = F k m g

where F = 250 N, k = kinetic friction coefficient = 0.4, and m = 50 Kg

a = box's acceleration

50a = 250-0.4×50×9.81

Solving yields a value of 1.08 m/s2.

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The equation given, x^2/63,500 + y^2/50,900 = 1, represents an ellipse. An ellipse is a closed curve that resembles a flattened circle. In this case, it represents the shape of the moon's orbit around the Earth.

To understand the shape of the orbit, let's analyze the equation step by step. The equation is in the form (x^2/a^2) + (y^2/b^2) = 1, where a and b are positive constants.

The values of a and b determine the shape and size of the ellipse. In this equation, a is equal to √63,500 and b is equal to √50,900.

Comparing these values, we can see that a is greater than b. This means that the major axis of the ellipse is aligned with the x-axis, and the minor axis is aligned with the y-axis.

So, the shape of the moon's orbit is elongated horizontally, resembling a stretched circle. The wider part of the ellipse represents the maximum distance of the moon from the Earth (apogee), while the narrower part represents the minimum distance (perigee).

In summary, the equation x^2/63,500 + y^2/50,900 = 1 represents an elliptical shape for the moon's orbit around the Earth.

(Note: The terms "x263,500" and "y250,900" in the original question seem to be typos. The correct equation is x^2/63,500 + y^2/50,900 = 1.)

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Answer:

First one after Oxygen is Oxygen. Then Iron(Fe). Then Carbon(C). Then Potassium(K)