name three things that can cause erosion

Light will reflect at the same angle off a smooth surface as when it first touches it. The direction of reflected light beams for a flat surface is the same. Specular reflection is what is happening here.

When light reflects off of a surface, it happens. Light will reflect at the same angle it was incident upon if the surface is glossy and smooth.

A smooth polished surface is what is referred to as a reflection when a light ray strikes it and bounces back. Surface reflection occurs when a light beam hits it and then leaves it.

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Answer: The part of color that's reflected is the red that bounces off the paper.

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Warm, moist air starts to uplift in the initial stages of thunderstorm development because of a combination of different lift mechanisms.

One of these is convective lift, which occurs when warmer air rises due to its buoyancy. This is because warm air is less dense than cooler air, and so it is more easily displaced by the cooler air. Another lift mechanism is orographic lift, which is the result of air being forced to rise as it moves over a mountain or hill. Finally, frontal lift occurs when a cold front moves into an area of warm, moist air, forcing it to rise. All of these lift mechanisms can combine to cause warm, moist air to be lifted and form a thunderstorm.

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Answer:

in the direction of greater force

Answer:

22.5meters

Explanation:

Step one:

Given data

Average speed = 0.5 m/s

time = 45 seconds

Required

The distance covered

Step two:

From Speed= distance/time

Distance= speed*time

Distance= 0.5*45

Distance= 22.5meters

Answer:

16Hz

Explanation:

Given parameters:

Speed of sound  = 400m/s

Wavelength  = 25m

Unknown:

Frequency of the wave  = ?

Solution:

To solve this problem;

      V  = F ∧  

V is the velocity

F is the frequency

∧ is the wavelength

      400  = F x 25

        F  = 16Hz

Answer:

16 hertz... I got it right on study-island

Explanation:

Answer:

yeah they right .

uhhhhh shsjsjsjwjwjwjwjwjw

Answer:

Possiable answer by edge:

The shape of a river’s stream bed affects the speed and eroding power of a river by influencing the amount of friction between the water flowing through the river and the stream bed below. Friction is the force that opposes the motion of one surface as it moves across another surface. In a river, there is friction between the flowing water and the stream bed beneath it. Where a river is deep, less water comes into contact with the stream bed, so there is less friction. The reduced friction means there is less opposition to the water’s motion, so the river flows at a greater speed and has more kinetic energy for erosion. On the other hand, where a river is shallow, more water comes into contact with the stream bed, so there is more friction. The increased friction means there is more opposition to the water’s motion, so the river flows at a lesser speed and has less kinetic energy for erosion. Also, the roughness of a stream bed covered with boulders and other obstacles causes the water to flow through the river in a turbulent fashion. This could cause the river to move slower in some cases or erode more in other cases.

Explanation:

summary of answer:

influencing the amount of friction between the water flowing through the river and the stream bed below.

F_net:-

Now

Apply Newton's second law

The velocity required for the electron to escape the nucleus of both 3H and 3He is approximately 2.18 x 10⁶ m/s.

The velocity required for an electron to escape the nucleus can be determined using the concept of the minimum required energy for escape, which is given by the ionization energy of the atom.

The ionization energy, or the energy required to remove an electron from an atom, is given by the formula:

E = (Z² x 13.6 eV) / n²

where E is the ionization energy in electron volts (eV), Z is the atomic number of the atom, and n is the principal quantum number of the electron.

For hydrogen-3 (3H) and helium-3 (3He), Z = 1 since they both have one proton in the nucleus. Thus, the ionization energy for both atoms can be calculated using n = 1 (the electron closest to the nucleus), which gives:

E = (1^2 * 13.6 eV) / 1^2 = 13.6 eV

To determine the required velocity, we can equate the ionization energy to the kinetic energy of the electron:

(1/2)mv² = E

where m is the mass of the electron and v is the velocity of the electron. Substituting the mass of the electron and the ionization energy of the atom, we get:

(1/2)(9.11 x 10⁻¹³ kg)(v²) = (1.36 x 10⁻¹⁸ J)

Solving for v, we get:

v = √[(2E) / m]

= √[(2 x 1.36 x 10^-18 J) / (9.11 x 10⁻³¹ kg)]

= 2.18 x 10⁶ m/s

Therefore, the velocity required for the electron to escape the nucleus of both 3H and 3He is approximately 2.18 x 10^6 m/s.

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Explanation:

Use Pythagorean theorem:

r² = x² + y²

r² = (-6.46 m)² + (-3.78 m)²

r = 7.48 m

Answer:

Magnifying glass and a Petri dish.

Explanation:

The rest energy of a silver atom can be calculated using Einstein's famous equation, E=\(mc^{2}\), where E is the energy, m is the mass and c is the speed of light.

Rest energy of a silver atom (E) = mass of silver atom (m) x speed of light \((c)^{2}\)

= 1.8 x \(10^{-25}\) kg x (3 x \(10^{8}\) \(m/s)^{2}\)

= 1.62 x \(10^{8}\) J

This means that even when the silver atom is at rest, it has an enormous amount of energy stored in its mass due to its mass-energy equivalence.

This concept is important in understanding nuclear reactions, where a small amount of mass is converted into energy through the process of nuclear fission or fusion.

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The Honeywell T4 Pro thermostat has an advanced setting called "Cycle Rate" that controls how often the heating or cooling system turns on and off to maintain the desired temperature. This setting can be adjusted to one of three options: "Fast," "Slow," or "Auto."

In "Fast" mode, the system will cycle more frequently, which may result in shorter heating or cooling cycles but more frequent on/off cycles. In "Slow" mode, the system will cycle less frequently, resulting in longer heating or cooling cycles but fewer on/off cycles. In "Auto" mode, the thermostat will automatically adjust the cycle rate based on current conditions to provide the most efficient operation.

To adjust the Cycle Rate setting on your Honeywell T4 Pro thermostat, follow these steps:

Use the arrow buttons to select the desired cycle rate option (Fast, Slow, or Auto).

The cycle rate may affect the performance and efficiency of your heating or cooling system, so it is recommended to consult with a professional HVAC technician before making any changes.

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The modern atomic model incorporates the quantum mechanics to solve the momentum and energy of electrons and the energy of electronic transitions.

There are various models which describes the structure and electronic properties of atoms starting from  Dalton model to Bohr's model of atom. The subatomic particle electrons was discovered by J J Thomson and he described that these electrons are randomly located in the atom.

It was Rutherford who discovered the positively charged particles protons. He proposed the nuclear model of atom. Where the nucleus possess the major part of the atom.

Later, Niels Bohr incorporated some quantum  mechanical concepts to describe the electronic properties of atom. He proposed significant equation to find the energy and momentum of electrons and the radius of atom. The modern electron revolution was stated by Bohr.

Still scientists are looking for advanced simulations which demonstrates the electronic transitions, stability of atom and position of subatomic particles etc.

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The modern atomic theory has made numerous breakthroughs that led to an amazing growth in nuclear physics.

Modern atomic theory is the theory that establishes various information about atom and atomic particles inside the atom. It also explained the energy variations inside atom.

Here,

1. Atom consists of electrons, protons, neutrons and also numerous sub-atomic particles.

  Atoms of same element may differ from one another and they are called isotopes. Atoms of different elements may be similar and are called isobars.

  Radioactivity was studied.

2. The first atomic model, Dalton's atomic model had some drawbacks. Then JJ Thomson modified it by adding some of his findings and assumptions, it was called Plum pudding model of atom in which he stated that atom is made of positively charge and electrons which  are embedded like a pudding. Then Bohr model was introduced in which he explained that atom  consists of nucleus around which electrons are revolving because of the electrostatic force of attraction between them. Also said that there's no gain or lose in energy in an atom.

Then came Rutherford's model in which he said that the electrons move around nucleus in circular orbits called as energy levels. His model was known as Alpha scattering model.

3. It was important that the scientific collaboration in the development of atomic theory made it more wide to scientific studies. Because, every model proposed had few limitations which was modified by the next scientist who studied on it. This paved the way for new inventions which in turn made a huge change in the world of science.

4. Yes, I think that atomic model would change again. Because science is a world of possibilities where we can study, explore and might even make new inventions. Science has always been a field where information are endless, even a single question in science will have a lot of answers. So there will always be growth of discoveries in science.

Hence,

The modern atomic theory has made numerous breakthroughs that led to an amazing growth in nuclear physics.

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Answer:

True

Explanation:

Answer:

This question is incomplete as it lacks the table that shows the advantages and disadvantages of the two mentioned nonrenewable source of energy (coal and ore). However, the question can be answered based on general understanding.

The answer is D. Ores must be processed.

Explanation:

Energy can be of two major sources namely: renewable and nonrenewable sources. Based on the mentioned area in this question, NONRENEWABLE SOURCES OF ENERGY are those sources of energy that cannot be replenished or replaced when exhausted. They are utilized faster than they form. Examples of nonrenewable sources of energy are coal, ores, fuel etc.

According to this question, Carlos listed some advantages and disadvantages of using nonrenewable resources. However, among the listed disadvantages, Carlo's error is that he included that: ORES MUST Be PROCESSED.

Ores are rock materials that contain metals, which are extracted and purified in a series of processing techniques. Hence, ORES NEED PROCESSING making Carlo's claim erroneous.

Answer:

Carlos listed some advantages and disadvantages of using nonrenewable resources.

Which best describes Carlos’s error?

Coal is not plentiful anywhere.

Coal generates very little energy.

Ores do not make many useful products.

Ores must be processed.

Explanation:

Answer:

Force = -4N

Explanation:

Given the following data;

Mass = 1kg

Initial Velocity = 20m/s

Distance = 50m

To find the acceleration;

We would use the third equation of motion;

Since, it comes to rest, its final velocity is zero (0).

V² = U² + 2as

Substituting into the equation, we have;

0 = 20² + 2*a*50

-400 = 100a

a = -400/100

a = -4m/s²

Now to find the force exerted

Force = mass* acceleration

Force = 1*(-4)

Force = -4N

Answer:

convection thermal energy causes ocean currents?

A red corpuscle mass 3.0 10-16 kg, and 4.0 10-11 N of force is necessary for it to pull away from the plasma. Angle of rotation = = /t.

In physics, mass is a statistical expression of inertia, a basic characteristic of all matter. It essentially refers to a body of matter's resistance to changing its speed or location in response to the administration of a force.

The sum of matter that makes up every object or body is the greatest way to understand mass. Everything that we can see has mass. For instance, even air has mass, as does a table, a desk, your sofa, a game, a glass, etc.

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Answer:

Explanation:

a. time 0 = 0

time 5 = 5

c. all values are equilvalents.

b. slope is x = y

Answer:

eh

Explanation:

Answer:

Explanation:

This might surely help you ☺️❤️

Answer:

It is not correct.

The correct conversion is:

1030 KJ = 246.18 KCal.

Explanation:

To know if 1030 KJ is equivalent to 245 KCal, we shall convert 1030 kJ to kcal. This can be obtained as follow:

4.184 KJ = 1 KCal

Therefore,

1030 KJ = 1030 KJ × 1 KCal / 4.184 KJ

1030 KJ = 246.18 KCal.

Thus, 1030 KJ is equivalent to 246.18 KCal.

From the above calculation, we can see that:

1030 KJ ≠ 245 KCal

Rather,

1030 KJ = 246.18 KCal.

The average velocity of the object over the given intervals can be calculated using the position function s(t) = \(-18t^{2}\) + 54t. The average velocities are as follows: (a) -144, (b) -126, (c) -108, and (d) -18h + 36.

The average velocity of an object can be found by calculating the change in position divided by the change in time. In this case, we are given the position function s(t) = \(-18t^{2}\) + 54t.

(a) For the interval [1,10], the change in time is 10 - 1 = 9. To find the change in position, we evaluate s(10) - s(1):

s(10) = \(-18(10)^{2}\) + 54(10) = -1800 + 540 = -1260

s(1) = \(-18(1)^{2}\) + 54(1) = -18 + 54 = 36

Change in position = -1260 - 36 = -1296

Average velocity = Change in position / Change in time = -1296 / 9 = -144.

(b) For the interval [1,9], the change in time is 9 - 1 = 8. To find the change in position, we evaluate s(9) - s(1):

s(9) = -18(9)^2 + 54(9) = -1458 + 486 = -972

Change in position = -972 - 36 = -1008

Average velocity = Change in position / Change in time = -1008 / 8 = -126.

(c) For the interval [1,8], the change in time is 8 - 1 = 7. To find the change in position, we evaluate s(8) - s(1):

s(8) = \(-18(8)^{2}\) + 54(8) = -1152 + 432 = -720

Change in position = -720 - 36 = -756

Average velocity = Change in position / Change in time = -756 / 7 = -108.

(d) For the interval [1,1+h], the change in time is (1+h) - 1 = h. To find the change in position, we evaluate s(1+h) - s(1):

s(1+h) = \(-18(1+h)^{2}\) + 54(1+h) = -18(1 + 2h + h^2) + 54(1 + h) = -18 - 36h - \(18h^{2}\) + 54 + 54h = 36h - \(18h^{2}\) + 36

s(1) = \(-18(1)^{2}\) + 54(1) = -18 + 54 = 36

Change in position = (36h - \(18h^{2}\) + 36) - 36 = 36h - \(18h^{2}\)

Average velocity = Change in position / Change in time = (36h - \(18h^{2}\)) / h = 36 - 18h.

Therefore, the average velocities for the given intervals are (a) -144, (b) -126, (c) -108, and (d) 36 - 18h.

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Answer: C. Be more dense and flow under warm air.

Explanation:

think of a supermarket selling dairy products and when you open the fridge to get the milk, outside the supermarket is hot and inside the fridge is cold ice.

The free-body diagram (FBD) for a 3 kg steel block being pulled at a constant speed on ice is found in the attachment.

The values of the four forces acting on the steel block are:

Free-body diagrams (FBDs) are visual representations that show the forces acting on an object. They are a tool used in physics to help analyze and understand the motion of an object.

In a free-body diagram, the object is represented as a dot or a box, and all the forces acting on the object are shown as arrows. The direction of the arrow represents the direction of the force, and the length of the arrow represents the magnitude of the force.

The values of the four forces acting on the steel block are:

Gravitational force/Weight is 3 * 9.81 = 29.43 N

Normal force = 29.43 N

The frictional force is 29.43 N * 0.04 (coefficient of friction) = 1.4715 N

Net force = 0 N since the 3 kg steel block is being pulled at a constant speed on the ice.

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The investigation presented did offer proof in favor of the existence of imperceptible electric force fields.

The force between two charged objects is the electric force, sometimes referred to as the Coulomb force. The interaction of charged particles produces this fundamental force of nature. The magnitudes of the charges on the two objects and the separation between them define the strength of the electric force.

The tape was observed to interact without touching when it was charged by rubbing the tape against one another. The formation of an electric field surrounding the charged tape, which pulls on other nearby charged items, can be used to explain this interaction.

Even though the electric field surrounding the charged tape was not explicitly measured or quantified, the observed interaction between the tape offers a weak indirection for its presence. Hence, the investigation did offer sufficient proof to back up the existence of undetectable electric force fields.

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Answer:

friction

air drag

every thing that opposes the motion affects kinetic energy

Explanation:

kinetic energy is a energy which is increase with increase in motion and potential energy is energy stored while the object is at rest

potential energy ∝ 1/(kinetic energy)

as kinetic energy increases potential energy decreases