Regions with mountain glaciers that experience much surface melting in the summer typically are eroded:
A) At a faster rate than regions with streams but no glaciers.
B) At the same rate as regions with streams but no glaciers.
C) At a slower rate than regions with streams but no glaciers.
D) At the same rate that natural rainfall dissolves granite.
E) Not at all; no erosion occurs in typical regions with melting glaciers.

Answer:

A work is done because the object moved

B no work is done because the donkey didnt move

Explanation:

Core samples provide us with the actual rocks from inside Earth. They are considered direct evidence of Earth's interior.

Rocks from the interior of the Earth are actually sampled via core samples. These are regarded as concrete proof of the interior of the Earth. Because they take a direct sample of the rocks that make up the layers that make up the Earth's surface and core, core samples provide clear proof of what is inside the planet.

Researchers can identify differences in weather patterns and climatic changes across time using geological core samples. Also, there may be proof of species, as well as the sedimentary make-up of lake and river beds, for instance. The dynamic character of the Earth's formation and how it changes through time are directly demonstrated by core samples. Where there are changes in the composition of the Earth can be determined thanks to seismic waves.

Seismograms can be used by geologists to determine the various components of the Earth's internal structure, such as which regions are solid, molten, or made of gases.

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Correct question is:

________ provide us with the actual rocks from inside Earth. They are considered ________ evidence of

The Hayashi model is a theoretical model used to describe the temperature distribution and conditions in the protoplanetary disk. However, it does not provide explicit information about the gas-solid interaction regimes or the particle size boundaries.

To determine the particle radius on the boundaries between the different regimes, we need to consider the relevant laws and models related to gas-solid interactions.

Regime (1): Epstein Law

Regime (II): Stokes Law

Regime (III): Ideal Fluid

In the context of gas-solid interactions, these regimes represent different flow regimes based on the size of solid particles and the behavior of the gas surrounding them.

The Epstein Law (Regime 1) applies when the mean free path of gas molecules is greater than the particle radius, and individual gas molecules collide with the particle. In this regime, the gas behaves like individual particles.

Stokes Law (Regime II) applies when the particle size is large enough that gas molecules can no longer individually collide with the particle but instead adhere to its surface, causing a viscous drag. In this regime, the gas behaves like a viscous fluid.

The Ideal Fluid (Regime III) represents the limit where the particle size is large enough that the gas behaves like an ideal fluid, and the viscous drag becomes negligible.

To determine the particle radius on the boundaries between these regimes in the Hayashi model, more specific information about the model is needed. The Hayashi model is a theoretical model used to describe the temperature distribution and conditions in the protoplanetary disk. However, it does not provide explicit information about the gas-solid interaction regimes or the particle size boundaries.

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Answer:

C, Both are formed at the boundary of warm and cool air masses.

Answer:

c

Explanation:

Answer:

\(v_x=34 m/s\)

\(v_y=53.9\ m/s\)

Explanation:

Horizontal Launch

When an object is thrown horizontally with a speed v from a height h, it describes a curved path ruled by gravity until it eventually hits the ground.

The horizontal component of the velocity is always constant because no acceleration acts in that direction, thus:

vx=v

The vertical component of the velocity changes in time because gravity makes the object fall at increasing speed given by:

\(v_y=g.t\)

The horizontal component of the velocity is always the same:

\(v_x=34 m/s\)

The vertical component at t=5.5 s is:

\(v_y=9.8*5.5=53.9\)

\(v_y=53.9\ m/s\)

Explanation:

Density = Mass / Volume

Denisty of Ethanol = 3.9 g / 5.0 mL

                               = 0.78 g/mL

Density of Benzene = 44 g / 5.0 mL

                                 = 8.8 g/mL

∴ Benzene is Denser.

Answer:

\(a_a_v_g=9.31m/s^2\)

Explanation:

To find the average acceleration, we just need the initial velocity of the body, the final velocity of the body, and the time interval it took to reach that final velocity from the initial velocity as a starting point.

Here we have:

Initial velocity \(u=0\) (body starts from rest)

Final Velocity \(v_f=27\)

time \(t=2.9\\\)

so, we can find the average acceleration using the following formula:

\(a_a_v_g=\frac{v_f-u}{t} =\frac{27-0}{2.9}=9.31 m/s^2\)

Uranus and Neptune have only enough mass to make Option c. 15 piles of earth

Jupiter is the fifth planet from the sun and the largest within the sun gadget. it is a fuel massive with a mass greater than two and a half of instances that of all of the other planets inside the solar machine combined, but barely much less than one-thousandth the mass of the solar.

Uranus is the 7th planet from the sun. Its call is a connection with the Greek god of the sky, Uranus, who, according to Greek mythology, became the exquisite grandfather of Ares, grandfather of Zeus, and father of Cronus. It has the 1/3-largest planetary radius and the fourth-largest planetary mass within the sun machine.

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Disclaimer:- your question is incomplete, please see below for the complete question.

Jupiter has enough mass to make 318 earths. In contrast, uranus and Neptune have only enough mass to make.

a. 100 Earths

b. 70 Earths

c. 15 Earths

d. 2 Earths

e. you can't fool me, Uranus and Neptune have a lot of ice, and so have much more mass than Jupiter

The control in the experiment is option B. The group that is given no shock.

The method utilized by the researcher in scientific study to reduce the impact of unimportant factors is known as experimental control. The power of the independent variable to alter the dependent variable is further strengthened by experimental control. 9 Nov 2021

A controlled experiment is a scientific test carried out under predetermined circumstances in which only one (or a small number of) variables are altered at a time while all other variables are maintained constant.

Researchers use experimental controls to reduce the impact of unrelated experience and environmental factors, as well as to strengthen the conclusion that changes in the dependent variable are caused by the independent variable (the ability to infer causality).

Hence, option B is correct as it is not receiving any special treatment in the experiment.

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Bring mass up against the axis of rotation. Consequently, a rotating object's overall moment of inertia will decrease due to its mass. The axis and the mass narrows as the mass moves closer together.

A measure of a body's propensity to resist angular acceleration that is calculated by summing the products of each particle's mass and square of its distance from the axis of rotation moment of inertia

A line along which an item rotates is referred to as its axis of rotation (also known as its axis of revolution). That line is typically fictitious in physics and calculus. The distance from the object's outside border to the axis of rotation is known as the radius of rotation.

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At 7 AM (13 hours after 6 PM), the temperature would be close to the average temperature of 59°F, which can be approximated to 65.9°F.

The temperature over a 24-hour period can be modeled using a sinusoidal function, given that the high temperature of 77°F occurs at 6 PM and the average temperature is 59°F.

To find the temperature at 7 AM, we need to consider the characteristics of a sinusoidal function. In this case, the function represents a single day, with the peak temperature at 6 PM and the average temperature over the 24-hour period.

Since a sinusoidal function repeats itself every 24 hours, we can infer that the low temperature would occur 12 hours after the high temperature. Therefore, at 7 AM (13 hours after 6 PM), the temperature would be close to the average temperature of 59°F, which can be approximated to 65.9°F.

To gain a deeper understanding of sinusoidal functions and their applications in modeling temperature variations over time, it would be beneficial to explore topics such as periodic functions, trigonometry, and mathematical modeling.

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The circumference in inches of the 25.0 pound solid steel cannon ball is 17.46 in

The density of a substance is simply defined as the mass of the subtance per unit volume of the substance. Mathematically, it can be expressed as

Density = mass / volume

The volume of the ball can be obtained as follow:

Density = mass / volume

Volume = mass / density

Volume = 11.3398 / 7.7×10³

Volume = 0.00147 m³

Multiply by 61023.7 to express in in³

Volume = 0.00147 × 61023.7

Volume = 89.70 in³

We shall use the formula for calculating the the volume of a sphere to determine the radius of the ball. Details below:

V = 4/3πr³

89.70 = 4/3 × 3.14 × r³

89.70 = 4.187 × r³

Divide both sides by 4.187

r³ = 89.70 / 4.187

Take the cube root if both sides

r = ³√(89.70 / 4.187)

Radius = 2.78 in

C = 2πr

C = 2 × 3.14 × 2.78

Circumference of ball = 17.46 in

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Answer:the nail is magnetized by a permanent magnet instead of by a solenoid with an electric current running through it

Explanation:

The permanent magnet magnetizing the nail will differently function like electromagnet, by utilizing the electric current through the iron. Hence, option (B) is correct.

The given problem is based on the concept and fundamentals of magnetization. The term magnetizations means that the density of magnetic dipole moments induced in a magnetic material, when it is placed near a permanent magnet.

Thus, we can conclude that the permanent magnet magnetizing the nail will differently function like electromagnet, by utilizing the electric current through the iron. Hence, option (B) is correct.

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We will have that the picture that shows the highest average kinetic energy is image B.

Answer:

C: the inertia of the object and the amount of force that is pushing it.

(a) The acceleration of the masses is determined as 1.1 m/s² in the direction of the 5 kg mass.

(b) The tension in the string in terms of gravity is T = g.

(a) The acceleration of the masses is calculated by applying Newton's second law of motion.

F(net) = ma

where;

(5 kg x 9.8 m/s² ) - (1 kg + 3 kg )9.8 m/s² = ma

9.8 N = (5kg + 1 kg + 3 kg )a

9.8 = 9a

a = 9.8 / 9

a = 1.1 m/s² in the direction of the 5 kg mass.

(b) The tension in the string in terms of gravity is calculated as follows;

T = ( 5kg)g - (1 kg + 3 kg ) g

T = 5g - 4g

T = g

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the work done on the car by the force of its engine is 78,000 J.

" The work done on the car by the force of friction is 24,000 J.

Increasing the car's kinetic energy at the end of the first 100 m is 54,000J

a. Completed work = force x distance. Engine output = 780 N, that is,

780 N x 100 m = 78,000 J.

b. Completed work = force x distance. Friction force = 240 N, that is,

240 N x 100 m = 24,000 J.

c. Kinetic energy = 1 \ 2 x m x v2

= 1 \ 2 x 750 kg x 12 squared = 375 x 144 = 54,000 J.

Mainstream car and truck engines typically produce 100-400 pounds. -Torque feet. This torque is generated by the engine piston as it moves up and down on the engine crankshaft, causing the engine to rotate (or twist) continuously.

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Hydrogen absorbs energy when heated or when another form of energy is provided to it, which causes the electron to become excited that "jumps" to an orbit further from the nucleus.

Methane, widely known as natural gas, has a healthy substitute in hydrogen. According to estimates, it makes about 75% of the universe's mass and is the most prevalent chemical element. Huge quantities of hydrogen atoms are present on earth in water, plants, animals, and, of course, people.

The sun and the majority of stars include it, while Jupiter is primarily made of it. The most prevalent form of hydrogen on Earth is water. Or less 1 part a million by volume, it only exists as a gas in trace concentrations in the atmosphere.

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The word intermolecular is made up of two parts - "inter" meaning between and "molecular" meaning relating to molecules. Intermolecular forces of attraction refer to the forces that exist between molecules.

These forces are responsible for the physical properties of substances such as their boiling and melting points. There are different types of intermolecular forces such as van der Waals forces, dipole-dipole forces, and hydrogen bonding. Van der Waals forces are the weakest and result from the temporary dipoles that occur in molecules. Dipole-dipole forces are stronger and result from the attraction between polar molecules. Hydrogen bonding is the strongest type of intermolecular force and occurs when hydrogen is bonded to a highly electronegative atom such as nitrogen, oxygen, or fluorine. This results in a strong dipole-dipole interaction between molecules.

Analyze the parts of the word "intermolecular" and define intermolecular forces of attraction.

The word "intermolecular" can be broken down into two parts:

1. "Inter" - This prefix means "between" or "among."
2. "Molecular" - This term refers to molecules, which are the smallest units of a substance that still retain its chemical properties.

When combined, "intermolecular" describes something that occurs between or among molecules.

Now let's define intermolecular forces of attraction:

Intermolecular forces of attraction are the forces that hold molecules together in a substance. These forces result from the attraction between opposite charges in the molecules, and they play a crucial role in determining the physical properties of substances, such as their boiling points, melting points, and density. Some common types of intermolecular forces include hydrogen bonding, dipole-dipole interactions, and London dispersion forces.

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Answer:

423 is the answer

I don't know the real. answer

Answer:

a=14m/s^2

Explanation:

F=ma

42N=3kg*a

a=14m/s^2

Answer:

b

Explanation:

The relative velocity with respect to the dock is 6.5j + 1.1 i m/s m/s.

We need to know about relative velocity to solve this problem. The relative velocity depends on the object and observer velocity. It can be written as

v = vo ± v'

where v is relative velocity, vo is object velocity and v' is observer velocity.

From the question above, we know that

vo = 6.5 j m/s

v' = 1.1 i m/s

The velocity will be added each other because the direction of the observer is different from the object.

v = vo + v'

v = 6.5j + 1.1 i

v = 6.5j + 1.1 i m/s

Thus, the relative velocity is in vector form.

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The height of a building if the pressure measured at the bottom of the building is 1011.1 hPa and the pressure measured at the top of the building is 999.3 hPa is 98.3 meters

(a) To calculate the height of the building using the pressure difference, we can apply the hydrostatic pressure equation:

ΔP = ρ * g * h

where:

ΔP is the pressure difference,

ρ is the density of air,

g is the acceleration due to gravity,

and h is the height of the building.

h = ΔP / (ρ * g)

h = 1180 Pa / (1.2 kg/m^3 * 9.8 m/s^2)

h ≈ 98.3 meters

(b) Possible sources of inaccuracy in the calculation could include variations in air density due to temperature and humidity changes, which might affect the density (ρ) value used in the equation. The assumption of constant acceleration due to gravity (g) may also introduce slight inaccuracies if the building's height is significant. Additionally, air pressure measurements may have some inherent errors or uncertainties associated with the measurement instruments used.

It's important to note that the calculated height using pressure difference alone assumes a homogeneous atmosphere and neglects other factors such as wind effects, variations in air composition, and altitude-related changes in gravity. These factors can contribute to further inaccuracies in the calculation.

To enhance accuracy, it is advisable to consider multiple measurement techniques, such as using altitude or laser-ranging devices, and accounting for other relevant factors that could affect the calculation.

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The box experiences a 40.8N frictional force as it moves across the horizontal surface.

Friction is the force that stops motion when the surfaces of two things come into contact. In other words, friction reduces the mechanical advantage of a machine and lowers the output to input ratio. The force produced between surfaces that slide against one another is known as the frictional force.

Frictional Forces are classified into four different types, they are rolling, sliding, static and kinetic friction. Another important type of friction is Fluid Friction.

f max​ =μN

       =μ(mg+Fsin53 0 )=0.2(8×10+1 )=40.8N

Fmax = 40.8N

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Answer:

¨ The alkaline earth elements are metallic elements found in the second group of the periodic table. ... Because of their reactivity, the alkaline metals are not found free in nature.¨

Explanation:

Owing to their electronic configuration and chemical reactivity, alkaline earth metals do not occur freely in nature.

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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In a 5.0 L container at 373 K and 203 KPa there is 0.327 mol of a gas sample.

The number of moles of a gas sample in a container can be calculated using the ideal gas law, which is represented by the equation PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is temperature.

Given the volume (V) of the container as 5.0 L, the temperature (T) as 373 K, and the pressure (P) as 203 kPa, we can rearrange the ideal gas law equation to solve for the number of moles (n) as follows:
n = PV/RT

Substituting the given values into the equation, we get:

n = (203 kPa)(5.0 L)/ (8.314 L*kPa/K*mol)(373 K)

n = 1015 kPa*L / (8.314 L*kPa/K*mol)(373 K)

n = 0.327 mol

Therefore, the number of moles of the gas sample in the 5.0 L container at 373 K and 203 kPa is 0.327 mol.

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Answer:

441J

Explanation:

Given parameters:

Mass of book  = 5kg

Height  = 9m

Unknown:

Gravitational potential energy  = ?

Solution:

The gravitational potential energy of a body is the energy due to the position of the body.

 It is given as:

   Gravitational potential energy = mass x acceleration due to gravity x height

Gravitational potential energy  = 5 x 9.8 x 9  = 441J

Answer:

Hello, Rotting, burning, cooking, and rusting are all further types of chemical changes because they produce substances that are entirely new chemical compounds. For example, burned wood becomes ash, carbon dioxide, and water. When exposed to water, iron becomes a mixture of several hydrated iron oxides and hydroxides.

Explanation:

I hape this helps remember to make someone smile today

Answer:

you want to know newtons first law here.

Explanation:

An object that is at rest stays at rest or stays in motion.

The thing to do here is to balance the eqns that is to balance the stoichometric ratios or coefficients of the cpds.

hope you understand. all the best.