Digging downward through a soil profile, how deep would you have to go before you found recognizable fragments of the parent rock for the soil?

Answer:

1200

Explanation:

f=ma

f_ force

m_ mass

a_ acceleration

The following calculations in standard notation is 9.13\(e_{1}\), 1.90\(e^{-10}\), 6.14\(e^{8}\).

A standard form of a number in maths is basically mentioned for the representation of large numbers or small numbers. We use exponents to represent such numbers in standard form.

The following calculations and report your answer with three

101,455,348 ÷ 1,111,419 =91.28452

=91.28452 ( in real numbers)

=9.13×\(10^{1}\) (Scientific notation)

=9.13\(e^{1}\)

Therefore, the answer is 9.13\(e_{1}\).

(ii). 0.000000612 × 0.00031119 = 0.000000000190

=0.000000000190 ( in real numbers)

=1.90×\(10^{-10}\) (in scientific notation)

=1.90\(e^{-10}\)

Therefore, the answer is 1.90\(e^{-10}\).

(iii). 297,060 + 0.0004839 =613900000

=613900000 ( in real numbers)

=6.14×\(10^{8}\) (in scientific notation)

=6.14\(e^{8}\)

Therefore, the answer is 6.14\(e^{8}\).

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Answer:

c.

Explanation:

The colour black absorbs all wavelengths of light and reflects none back to our eyes, hence, why it appears black to us.

The colour white reflects white because it reflects all wavelengths of light and absorbs no light, hence, why it appears white to us since light itself is white.

The answer is c.

Answer:

Coring is a defect in an alloy (e.g., a copper nickel alloy) that occurs when a heated alloy is cooled too fast for diffusion to occur.

Explanation:

Answer:

atom

Explanation:

the first guy who gave link this is for you:

we cannot use links in brainly

Thankyou.

The energy that makes up a system's temperature, or thermal energy, is said to be present in the system.The required thermal energy is 2360J.

The energy that makes up a system's temperature, or thermal energy, is said to be present in the system.

Thermal energy is emitted as heat.Thermodynamics, a distinct field of physics, examines how work is accomplished via the transmission of heat between various systems (see the first law of thermodynamics).

Mass of aluminum  = 25g

Melting point  = 658°C

Latent heat of melting  = 94.4j/g

Unknown:

Amount of heat require for melting = ?

The amount of heat required for this melting will be the product of the mass of the aluminum and the latent heat of melting;

H = m L

m is the mass

L is the latent heat of melting

insert the parameters and solve;

H = 25 x 94.4 = 2360J

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A. The velocity of the rock after 9.4 seconds is 92.12 m/s.

B. The elevation of the rock after 9.4 seconds is 4396.72 m.

a) The velocity of the rocket at t = 20 sec is 2026 m/s to the right.

b) The velocity of the rocket at t = 80 sec is 1024 m/s to the right.

Given, Height, h = 370 meters Time, t = 9.4 seconds Acceleration, a = g = 9.8 m/s².

Formula Used:

The equations of motion for a freely falling body are,

v = u + gt (Initial velocity) u = 0m/s(initially at rest)

v² = u² + 2gh (final velocity)

h = ut + 1/2 gt².

We have to calculate the velocity and elevation of the rock after 9.4 seconds.

A) Calculation of Velocity Using the equation of motion v = u + gt where u = 0 (as the rock is dropped from rest)v = gt.

Now, putting the value of g and t, we get v = 9.8 m/s² × 9.4 s= 92.12 m/s. Therefore, the velocity of the rock after 9.4 seconds is 92.12 m/s.

B) Calculation of Elevation. Using the equation of motion

h = ut + 1/2 gt² where u = 0 (as the rock is dropped from rest)

h = 1/2 gt²

Putting the value of g and t, we get h = 1/2 × 9.8 m/s² × (9.4 s)²= 4396.72 m. Therefore, the elevation of the rock after 9.4 seconds is 4396.72 m.

Given,Initial velocity, u = 2360 m/s Deceleration, a = 16.7 m/s² Velocity at (a) t = 20 sec and

(b) t = 80 sec is to be calculated.Formula Used:

The velocity-time relationship is given by, v = u - at Where,v = final velocity u = initial velocity a = acceleration t = time elapsed.

We have to calculate the velocity at (a) t = 20 sec and (b) t = 80 sec.

a) Calculation of Velocity at t = 20 sec

Using the formula of velocity-time relationship,

v = u - at where u = 2360 m/sa = -16.7 m/s² (as the rocket is decelerating)v = ? (to be calculated)t = 20 s.

Putting the values,

we get,v = 2360 m/s - (16.7 m/s²) × 20 s= 2360 - 334= 2026 m/s.

Therefore, the velocity of the rocket at t = 20 sec is 2026 m/s to the right.

b) Calculation of Velocity at t = 80 sec.

Using the formula of velocity-time relationship,v = u - at where u = 2360 m/s a = -16.7 m/s² (as the rocket is decelerating)v = ? (to be calculated)t = 80 s.

Putting the values, we get,v = 2360 m/s - (16.7 m/s²) × 80 s= 2360 - 1336= 1024 m/s.

Therefore, the velocity of the rocket at t = 80 sec is 1024 m/s to the right.

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The main answer will provide a concise summary of the calculations and results for each question.

The initial momentum of an object is given by the formula P = mv, where P represents momentum, m is the mass, and v is the velocity. In this case, the mass of the block is 5 kg, and the initial velocity is 3 m/s.

Plugging these values into the formula, the initial momentum is calculated as 5 kg * 3 m/s = 15 kg m/s.

The initial kinetic energy of an object is given by the formula KE = (1/2)mv^2, where KE represents kinetic energy, m is the mass, and v is the velocity. Using the given values of mass (5 kg) and velocity (3 m/s), the initial kinetic energy is calculated as (1/2) * 5 kg * (3 m/s)^2 = 22.5 J.

The change in momentum of an object is equal to the force applied multiplied by the time interval during which the force acts, according to the equation ΔP = Ft. In this case, a force of 9 N is applied for 2 seconds. The change in momentum is calculated as 9 N * 2 s = 18 kg m/s.

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Answer:

It is going through a phase change when it is flat.

Explanation:

During the horizontal line segments, there is no change in temperature, so kinetic energy remains constant. However, all the energy that is absorbed or released is related to changes in potential energy.

Answer:

Reproduction

Explanation:

because reproduction produces variation within the species allowing the species to survive selection

Answer: D = reproduction

Explanation:

there exists a unique solution passing through any point in the plane.

An ordinary differential equation (ODE) is an equation that relates a function and its derivatives. In other words, it describes how the rate of change of a function depends on the function itself.

Now, coming to your question, you are given an ODE of the form (1²) y + y = sect, where y is the function we are interested in, and sect is a known function. The initial condition is also given, y(1/2) = 4.

(a) To find the interval on which there exists a unique solution, we need to check if the ODE satisfies the conditions of the Existence and Uniqueness Theorem. This theorem states that if an ODE is of the form y' = f(x,y) and if f(x,y) and its partial derivative with respect to y are both continuous on a rectangular region R of the xy-plane containing the point (x0, y0), then there exists a unique solution to the ODE passing through the point (x0, y0).

In our case, the ODE can be written as y' + y/(1²) = sect/(1²). So, f(x,y) = y/(1²) and its partial derivative with respect to y is 1/(1²), which are both continuous everywhere. Therefore, the conditions of the Existence and Uniqueness Theorem are satisfied, and there exists a unique solution passing through the point (1/2, 4) on any interval containing (1/2, 4).

(b) To find the points in the plane where there definitely exists a unique solution, we need to check if the ODE satisfies the conditions of the Lipschitz Condition. This condition states that if an ODE is of the form y' = f(x,y) and if there exists a constant L such that |f(x,y1) - f(x,y2)| <= L|y1 - y2| for all (x,y1) and (x,y2) in a rectangular region R of the xy-plane, then there exists a unique solution passing through any point in R.

In our case, f(x,y) = y/(1²) and its partial derivative with respect to y is 1/(1²). Taking the absolute value of the difference of f(x,y1) and f(x,y2), we get |f(x,y1) - f(x,y2)| = |y1/(1²) - y2/(1²)| = |(y1 - y2)/(1²)|. Therefore, we can choose L = 1/(1²) = 1, which satisfies the Lipschitz Condition.

Thus, there exists a unique solution passing through any point in the plane.

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The stopping distance of d2 expressed in terms of d1 d2= 18d1.

According to newton's second law of motion, F= ma.

By using the kinematic equation, v²= u² + 2as

0= 2ad + 2Fd/m

d = v² m/ 2F

Similarly, we can write,

v²₂= u² ₂+ 2as

d2=(3v)² m  /F

d2/d1 = (3v)² m /F/ 2f/ v² m

d2/d1= 9v² m/ v²

d2= 18d1

Therefore, The stopping distance of d2 expressed in terms of d1 d2= 18d1.

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Answer:

(I)W=18×10³ J

(ii) P=720W

Explanation:

30 Bricks = 1brick weight× 30 Bricks

30 Bricks= 12×30

=360N

Distance=50m

Time= 25s

1. Work done= Force× Distance

=360×50

= 18×10³ J

2. Power= Work done/ Time

18×10³/25

Power= 720W.

Answer:

must double the force, with the same masses you get twice the acceleration.

Explanation:

Newton's second law establishes a relationship between force and acceleration where the constant of proportionality is mass

        F = m a

To prove these relationships you must double the force, with the same masses you get twice the acceleration.

     2F = m 2a

The downside is that if you double the mass, the acceleration stays the same.

    2F = 2m   a

The magnetopause is the outer boundary of the Earth's magnetic field. It separates the solar wind's plasma from the Earth's plasma.

The average distance from the center of the Earth to the magnetopause varies based on the strength of the solar wind. The magnetopause's distance can be calculated using the following formula: \(R = (10 * n^(-1/6) + 1.2) * (Vsw)^2/ (Bz)^2/3\),

where R is the distance of the magnetopause from the Earth's center, n is the solar wind's \(density in particles/cm^3\), Vs w is the solar wind's speed in km/s, and Bz is the interplanetary magnetic field's (IMF) z-component in nT (nanotesla).

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Answer:

1. B

2. B

3. D

4. A

Hope this was correct! A lot of the answers are already in the article itself and the wording is just different. I suggest now that for information retainment, you read the article again with the correct points in mind and see if you can spot the points where the answers are stated!

Answer:

A. The target nucleus split into two nuclei, each with fewer nucleons than the original.

Explanation:

A-P-E-X

Answer:

The target nucleus split into two nuclei, each with fewer nucleons than the original.

Explanation:

Ap3x

The boat will move at a distance of 0.7 m.

A crucial idea in physical theory is the center of mass (COM), which is the axis around which things revolve. An essential idea in physical theory is the center of mass (COM). The point on which things rotate is the location on an object where the weighted position relative of the dispersed mass adds to zero.

initial center of mass of system,

xi = [77(2.7)+55(0)+88(1.35)]/77+55+88

xi = 1.49 m

center of mass when the lovers both walk toward each other and meet at the center of the boat,

xf = [(77+55)2.7+80(1.35)]/77+55+80

xf = 2.9 m

displacement, d = xf-xi

                       d = 2.9 - 1.49 = 0.7m

Hence the distance moved by boat is 0.7m.

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Answer:

1.27551m

Explanation:

This is a simple energy convertion problem. Since there is no friction, and assuming no air drag and other external factors, mechanical energy should be conserved in this system.

Thus, we get:

\(KE_{initial} + PE_{initial} = KE_{final} + PE_{final}\)

We also know that the gravitational potential energy is equal to mgh, while the KE can be calculated using \(\frac{1}{2}mv^2\)

One thing to note here, is that the final KE will be 0, as there is no velocity at the end. Furthermore, we also can set the initial PE as 0 as we are looking at relative height, and at the start it is at h=0.

\(KE_{initial} = PE_{final}\)

Plugging in:

\(\frac{1}{2}*30*5^2 = 30*9.8*h\)

Solving for h, we get 1.27551m

Temperature is the degree of hotness or coldness of an object or substance. The SI unit of temperature is Kelvin."97%": The question suggests that a reaction must be run at a specific temperature to achieve 97% yield or completion. Yield refers to the amount of product obtained from a reaction.

To achieve 97% yield or completion, the reaction must be run at a specific temperature. Temperature plays an essential role in chemical reactions since it affects the rate of reaction, activation energy, and equilibrium. The temperature at which a reaction runs optimally, producing the most product, is known as the reaction's optimum temperature. As a result, the temperature must be controlled during a chemical reaction.To achieve 97%, the reaction must be run at a specific temperature.

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There is no net force operating on us because the elevator and everything inside it, including us, are descending at a steady speed, indicating that all the forces are equal and balanced.

Because any imbalanced force is the force that is not acting on us, all of the possibilities are technically correct.

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Answer:

73 neutrons.

Explanation:

Data obtained from the question:

Mass number of Xenon = 127.

Neutron number =...?

We can obtain the number of neutron present as follow:

Atomic number of Xenon = 54

Recall:

Atomic number = proton number = 54

Mass number = proton + neutron

127 = 54 + Neutron

Neutron = 127 – 54

Neutron = 73.

Therefore, 73 neutrons are present in the Xenon atom.

The acceleration experienced is  -4 m/s.

Acceleration is the rate of change of an object's velocity with respect to time. Acceleration is a vector quantity. The direction of an object's acceleration is given by the direction of the net force acting on that object. Acceleration is the name we give to the process of changing velocity. Velocity is both speed and direction, so there are only two ways to accelerate.

Velocity is the rate of change of displacement. Acceleration is the rate of change of velocity. Velocity is a vector quantity because it consists of both magnitude and direction. Since acceleration is the rate of change of velocity, it is also a vector quantity.

initial velocity =   22.0 M/S

final velocity = 14 m/s

time to change the velocity = 2 second

v = u + at

at = u - v

a= - \(\frac{u - v}{t}\)

a = - \(\frac{22 -14}{2}\)

a = -8/2

a = -4 m/s

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Answer:

1.When we spray deo or paint through a bottle

2. we use in syringes

3. when we open a bottle of coke.

4. when we open the tap we find the water gushin out through great pressure.

5 Hydraulic system

construction of syringe

Construction of Dams

Construction of Water tank

Wearing of special suit by sea-driver in sea or occean etc

It is determined by the nature of the green light. Because lasers create light at almost a single frequency, green laser light would appear as a thin line of pure green. Other sources of "green" light emit light at a variety of frequencies, including yellow and blue, resulting in a strong green band in the center that fades into blue-green and yellow-green at the borders.

For example, here’s a graph of the spectrum of a green LED, showing the color range: Attachment #1

and here’s a graph of the transmission spectra of several standard photographic filters, including green: Attachment #2

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Answer:

Explanation:

Did u get the answer

Answer:

D

Explanation:

The final temperature of the mixture is closest to 32.5 °C

Heat loss = Heat gain

MᵥᵥC(Tᵥᵥ – Tₑ) = M꜀C(Tₑ – M꜀)

50 × 4.184 (40 – Tₑ) = 30 × 4.184(Tₑ – 20)

209.2(40 – Tₑ) = 125.52(Tₑ – 20)

Clear bracket

8368 – 209.2Tₑ = 125.52Tₑ – 2510.4

Collect like terms

8368 + 2510.4 = 125.52Tₑ + 209.2Tₑ

10878.4 = 334.72Tₑ

Divide both side by 334.72

Tₑ = 10878.4 / 334.72

Tₑ = 32.5 °C

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(A) The two additional forces that act on the sled as it travels from the top of the hill to the bottom are friction force and weight of the children.

(B) The force of friction is opposing the motion while the weight of the children is assisting the downward motion.

The forces that act on the sled as it travels from the top of the hill to the bottom with either aid the downward motion or oppose the downward motion.

The forces acting on the sled include the following;

The weight of the children is acting downwards and it will increase the motion downwards since there in the same direction.

The force of friction between the surface of the sled and the hill will oppose the downward motion of the children as the father exerts the downward force.

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