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3 years ago

Describe the difference between a soil horizon and a soil proﬁle

Physics

2 answers:

horsena [70]3 years ago

6 0

Answer:

The particles that accumulate on the rocks as time passes transform into the so-called integral soil profile. This profile is characterized by having different soil horizons, which are the different processes of soil formation, for example:

-the upper horizon is an area where organic matter accumulates, which provides enough carbon dioxide and some organic compounds.

-the next horizon is what is known as the leaching zone, where the different mineral materials dissolve due to the water that seeps into the soil.

-the next horizon is the so-called accumulation zone, where the chemicals that are dissolved in the filtered water are deposited and transformed into minerals

-the last horizon is the so-called transition zone, where the new material originates.

Explanation:

mario62 [17]3 years ago

5 0

Soil profile includes all the sections/ horizons of the vertical soil depth from top to bottom including the transitions from one horizon to another. A soil horizon is a distinct layer/section of soil with more or less the same texture. Therefore, a soil profile is made of soil horizons.

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A student who has trouble hearing and must have a written copy of class lectures in order to participate in class is considered

Scrat [10]

<span>For this, the student has problems when participating in class discussions. </span>I believe that this type of student has a participation restriction disability. This disability refers to an individual who cannot focus or is not capable of participating in social activities.

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4 years ago

Which of the following physical laws or principles can best be used to analyze the collision between the object and the pendulum

posledela

3. Newton's third law

5. Conservation of momentum

<u>Explanation:</u>

Conservation of momentum is mostly used for describing collisions between objects. Here, the type of collision is inelastic collision in which the object when collides with the pendulum bob sticks to it and moves as a combined object. In this process the momentum is conserved.

Let the mass of the pendulum be m1 moving with a velocity v1.

Let the mass of the object be m2 moving with a velocity v2.

Since the momentum is conserved during collision, the equation will be

$m1 v1 + m2 v2 = (m1 + m2) v$

Where, v is the velocity of the combined system.

Conservation of momentum is actually a direct consequence of Newton's third law.

Consider a collision between two objects, object A and object B. When the two objects collide, there is a force on A due to B. However, because of Newton's third law, there is an equal force in the opposite direction, on B due to A

FAB = -FBA

The mechanical energy is not conserved due to the fact that the kinetic energy is not the same before and after the collision.

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3 years ago

The flywheel in the shape of a solid cylinder of mass 75.0 kg and diameter 1.40 m rotates about an axis passing through the cent

Anni [7]

The torque required for the cylinder is 76.99 N m.

What is torque?

Torque may be defined as the product of the force and the distance perpendicular to the force from the axis of rotation.

Calculation of the angular acceleration:

The first kinematic equation for the rotational motion is,

ω=ω₀+αt

where ω₀ is the initial angular velocity, ω is the final angular velocity, α is the angular acceleration and t is the time. Since the cylinder starts from the rest, its initial angular velocity is zero.

Here, ω=320 rev/min or ω=320*2π/60 rad/sec, ω₀=0 and t=8.00 sec. Put these values in the above equation and solve it to get the value of angular acceleration.

320*2π/60=0+α*8

α=320*2π/(8*60)

α=4.19 rad/s^2

Calculation of the torque:

The torque T is given by the formula,

T=Iα

where I is the moment of inertia.

For the cylinder, I=1/2*mr^2

where m is the mass of the cylinder and r is the radius of the cylinder.

So,

T=1/2*mr^2*α

Here m=75 kg, radius r is half of the diameter r=1.4/2=0.7 m, and α=4.19 rad/s^2. Using these values in the formula of torque.

T=1/2*(75)*(0.7)^2*4.19

T= 76.99 N m

Learn more about the torque.

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2 years ago

Francis Bacon created a new way of scientific thinking called inductive reasoning. How was this different from the deductive rea

WINSTONCH [101]

Scientists now gathered information and facts before creating a theory.

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3 years ago

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If the attacking team sends the ball out-of-bounds over a goal line, what is the next play?

dusya [7]

A goal kick will take place if the ball is not inside of the posts but if the ball bounces back from inside the frame it is definitely a goal

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