In 1825, French scientist François-Vincent Raspail became the first scientist to observe that every cell is produced through cell division. How is cell division different in single-celled organisms than in multi-celled organisms? A. Single-celled organisms duplicate their genetic material twice during cell division. B. Cytokinesis divides single-celled organisms into three daughter cells. C. There is no metaphase for single-celled organisms. D. Cell division results in reproduction in single-celled organisms.

Answer:

I hope to learn the basic moves and stances of boxing. I understand that I won't be boxing with another person, but that’s OK. These exercises seem like a good starting point. I really want to understand how to put together combinations. I’ve seen professional boxers throw combinations on TV, but their hands move so quickly that I can’t catch the finer details of the sport. Maybe this will be an opportunity for me to find out more.

Explanation:

Answer:

J = 500 kg-m/s

Explanation:

Given that,

Initial speed of the motor, u = 5 m/s

Final speed of the motor, v = 7 m/s

Mass of the boat, m = 250 kg

We need to find the impulse applied by the motor. We know that impulse is equal to the change in momentum. It is represented by letter J.

J = m(v-u)

J = 250 (7-5)

J = 500 kg-m/s

Hence, the impulse applied by the motor is 500 kg-m/s.

Answer:

just know that if the volume is reduced by 10 the the pressure is increased by 10

a. the period of the oscillations is  0.285 seconds.

b. The maximum speed of the mass as it passes through the equilibrium position is 19.26 m/s.

T = 2π√(m/k)

where T=  period

m= mass

k= spring constant.

T = 2π√(0.820 kg / 2620 N/m)

T = 2π√(0.820 / 2620)

T =  0.285 seconds

b.

max speed = Aω

A =  amplitude

ω=  angular frequency.

ω = √(k/m)

ω = √(2620 N/m / 0.820 kg)

ω = √(3207.3 rad/s²)

ω =  56.64 rad/s

max speed   = 0.340 m × 56.64 rad/s

max speed  =  19.26 m/s

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Answer:

0.03 Joules have been converted into other forms of energy as the direct result of the collision.

Explanation:

Let's start studying the conservation of momentum for the system:

\(P_i=P_f\\(0.25\,kg)\,{0.6\,m/s)+(0.5\,kg)\,(0\,m/s)=(0.25\,kg+0.5\,kg)\, v_f \\\\\\ 0.15\,kg\,m/s=0.75\,kg\,\,v_f\\v_f=0.15/0.75\,\,m/s\\v_f=0.2\,\,m/s\)

Now that we know the speed of the newly created object, we can calculate how the final kinetic energy differs from the initial one:

\(K_i=\frac{1}{2} (0.25)\,(0.6)^2+\frac{1}{2} (0.5)\,(0)^2=0.045\,\,J\\ \\K_f=\frac{1}{2} (0.75)\,(0.2)^2=0.015\,\,J\\\)

Then, when we subtract one from the other, we can estimate how much kinetic energy has been converted into other forms of energy in the collision:

0.045 J - 0.015 J = 0.03 J

Answer:

trueeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Explanation:

The theory is true that psychosocial development emphasizes that development occurs by overcoming an emotional crisis.

The term "psychosocial development" refers to how a human's personality changes during childhood and adulthood, as well as how social skills are acquired. The eight phases of psychosocial development were first described by psychologist Erik Erikson in the 1950s. According to Erikson, each stage is marked by a "psychosocial crisis" that can either have a good or negative impact on a person's personality.

Erikson asserts that a person's personality and social abilities change over the course of eight stages that span the entirety of their life. A person encounters a psychosocial crisis—critical issues—at each level, which must be overcome.

The way a person handles each of these crises has an impact on their personality. If people respond favorably, they acquire virtue (moral behavior).

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Answer:

The dark lines in absorption spectrum of light is due capacity of atoms to absorb light of a specific energy. The absorption of light by atoms occurs when the atom transitions from a lower energy or ground state to an excited high energy state, and it appears in the emission spectrum of the element as dark lines located in the same position as the bright lines

Explanation:

Answer:

The thickness of the film is = 3.183e-9m

Explanation:

It will help us if we understand that the shape of the circular film can be approximated to be a cylinder. The height of this cylinder, or its thickness, in this case, will be very small.

Since we can approximate the shape of the drop of oil to be a cylinder, after it has spread out on the surface of the water, we can use the cylindrical geometric formulas to find out how thick the film is.

The volume of a cylinder = \(\pi r^2 h\)

our radius is given as \(10^{-1}m = 0.1m\)

the volume is \(10 ^{-10} m^3=1e-10m^3\)

Remember that our task is to find the height of the cylinder. We can do this by making the height the subject of the formula.

\(h = \frac{Volume}{\pi r^2} = \\\\\frac{1e-10}{\pi \times 0.1^2} = 3.183e-9m\)

Therefore, the thickness of the film is = 3.183e-9m

Answer: i got you

Explanation:

In Case A, when a baseball pitched at 40 m/s collides with a catcher's mitt and is brought to a stop, the collision is considered inelastic because the catcher holds the mitt rather rigidly and retracts backwards very little as the ball strikes the mitt. As a result, the majority of the kinetic energy of the baseball is converted into thermal energy and the baseball is deformed. The catcher's mitt also experiences some deformation, but the energy absorbed by the mitt is relatively less than the energy absorbed by the baseball.

In Case B, when an identical baseball pitched at 40 m/s collides with a catcher's mitt and is brought to a stop, the collision is considered elastic because the catcher holds the mitt with a relaxed arm and retracts backwards 30 cm as the ball strikes the mitt. The kinetic energy of the baseball is converted into elastic potential energy in the mitt and the baseball does not experience significant deformation. The mitt also does not experience significant deformation.

In summary, when a baseball is caught with a rigid mitt, the collision is inelastic and the baseball is deformed, while when a baseball is caught with a relaxed mitt, the collision is elastic and the baseball does not experience significant deformation.

Answer:

What is an electromagnetic wave

Explanation:

Electromagnetic radiation is also more commonly known as light, light travels in waves- and light travels at the same speed as electromagnetic waves. :)

The velocity of the roller coaster at the top of the second hill is 24.25 m/s.

Velocity is the rate of change of displacement. The s.i unit is m/s

To calculate the velocity of the coaster car, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Solve for v

Hence, The velocity of the roller coaster at the top of the second hill is 24.25 m/s.

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The steam engine moves a piston back and forth inside a cylinder using the force created by the pressure of the steam. A connecting rod and crank can convert this pushing force into a rotational force for wo

Because electric and diesel locomotives are faster, more effective, and simpler to operate, steam locomotives are no longer utilized to transport people or goods. The locomotives that are still in operation are historical artifacts from the 1800s that serve as a great reminder of how far we've come.

Simply explained, steam engines generate heat energy by boiling water and producing steam using fire and coal (chemical energy). This heat energy is then used to push the cylinder and piston, which in turn moves the wheels (kinetic).

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The thing that happens when you push or pull a water tube is that the force makes the tube to speed up, slow down, or be in one place.

It is very hard when pulling  water and if a person need to consistently pull air out of the tube before water makes it to the pump, it is very  difficult and some pumps may or cannot do it.

In regards to pushing, when a person is pushing above the Center of Gravity, one is pushing the said object into the ground and thus is increasing the rate of friction.

If a person is pulling you are said to be pulling above the Center of Gravity and lowering friction.

So, The thing that happens when you push or pull a water tube is that the force makes the tube to speed up, slow down, or be in one place.

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Hence, the acceleration will be 16 m/s²

According to Newton's second law of motion, acceleration of an object is directly proportional to the net force acting on it keeping the mass of the object constant.

Mathematically,

F ∝ a

It means that when there is no net force acting on the body, there is no acceleration. A force is a push or a pull, and the net force ΣF is the total force, or sum of the forces exerted on an object in all directions. When the net force is increased or decreased by a factor of X, then acceleration also increased or decreased by a factor of X respectively according to Newton's 2nd law of motion.

F = ma

(-2)F = 4x8 N

(-2)F = 32 N

So, acceleration = 16 m/s²

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The imaginary, huge, apparently moving sphere on which the stars appear to be mounted is called the celestial sphere.

The celestial sphere is a concept used in astronomy to represent the appearance of the stars as if they are fixed on a gigantic sphere surrounding the Earth. It is a helpful tool for astronomers to study the positions and movements of celestial objects, such as stars, planets, and galaxies.

Although the celestial sphere is an imaginary construct, it provides a convenient reference frame for locating and observing celestial objects. It allows astronomers to measure the positions of stars and track their apparent motion across the sky. By using coordinates on the celestial sphere, such as declination and right ascension, astronomers can precisely describe the location of a celestial object.

One important thing to note is that the celestial sphere is not a physical object but rather a way of visualizing the sky. It is an imaginary projection of the Earth's equator and celestial poles onto the sky. The celestial equator is a projection of the Earth's equator onto the celestial sphere, while the celestial poles are projections of the Earth's North and South Poles.

To summarize, the celestial sphere is an imaginary, huge, apparently moving sphere on which the stars appear to be mounted. It helps astronomers study and understand the positions and movements of celestial objects.

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Answer:

b option mass will not change based on location while weight will changr based on gravitational pull

bcz in the formula of weight w=mg

so w is directly proportional to g

The formula of weight w=mg

so w is directly proportional to g

b. Mass will not change based on location, while weight will change based on gravitational pull.

The weight of an object is defined as the force of gravity on the object and may be calculated as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton.

Mass and weight are related by the equation Weight = mass x gravity. You might know this equation as Newton's II Law of Motion Force = mass x acceleration (F = ma) where Force (or weight) is measure in Newtons, N, and the mass is measured in kilograms, kg.

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Answer:

1: 80

2: 0.013 (its 0.0125 rounded)

Explanation:

In order to create a magnifier in convex lens, you should choose a short focal length that is lesser than 1 meter.

A convex lens is also referred to as converging lens and it can be defined as a type of lens that typically causes parallel rays of light with respect to its principal axis to come to a focus (converge) and form a real image.

In Science, a magnifier refer to an optical instrument that allow us to look at a very near object because its image is generally formed farther away. Thus, the image of the object appears to be much larger.

In this context, you should choose a short focal length that is lesser than 1 meter when you want to create a magnifier in convex lens because the nearer the object is to the lens, the larger would be the image formed.

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Answer:

63.01 kg is the mass of the student whose weight is 618 Newton

Mass of student is 63 kilogram (Approx.)

Given that;

Weight of a student = 618 Newton

Find:

Mass of student

Computation:

We know that;

Gravitational acceleration g = 9.8 m/s²

So,

Mass  = Weight / Gravitational acceleration

Mass of student = 618 / 9.8

Mass of student = 63.06

Mass of student = 63 kg (Approx.)

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Saying that someone or something is beneath you expresses your opinion that they are either unworthy of you or not appropriate for you.

They concluded that she should not marry. Alternatives: inappropriate, unworthy of, unsuited for, unsuitable for Additional Synonyms for below.

It is the passed beneath by which a velociraptor riding a bicycle while maintaining a steady speed of 6 meters per second. How quickly do the velociraptor's distances grow Under his T-shirt, she could make out the shoulders' muscles. Sitting beneath the trees gave her pleasure. The theatre's four levels of parking were insufficient.

He noticed that a known photo book on a shelf below. adverb further down than the; underneath; lower in the location than. close to the ground; short. below. underneath. bottom. bottommost the first drawer down from the top.

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The Rio Grande is one of the largest river systems in the United States, running over 3,000 kilometers from the mountains of Colorado to the Gulf of Mexico. The river flows from north to south and passes through several states, including Colorado, New Mexico, and Texas.

A comparison of the discharge of the Rio Grande at Albuquerque and at Otowi Bridge (located upstream, near Santa Fe) is as follows: Albuquerque: It is the largest city in New Mexico, situated in the central part of the state. The Rio Grande flows through the city, where it is dammed to form a large lake known as Elephant Butte Reservoir. The discharge of the Rio Grande at Albuquerque is around 100 cubic feet per second (cfs) during normal conditions.

This means that the river has twice the volume of water at Otowi Bridge than at Albuquerque.During times of drought, the river's discharge can drop to dangerously low levels, affecting wildlife and human communities that rely on the river for water. The river's discharge can also increase during periods of heavy rainfall or snowmelt, leading to flooding in downstream communities.

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If the result of your calculation of a quantity has SI units of kg·m/(s²·C), that quantity could be an electric field strength. The electric field strength (E) is defined as the force per unit charge acting on an electric charge. Option (A) is correct.

It is a vector quantity with units of newtons per coulomb (N/C) or volts per meter (V/m). The formula to calculate electric field strength is given as E = F/q, where F is the force acting on the charge and q is the magnitude of the charge.The SI unit of force is the newton (N), and the SI unit of charge is the coulomb (C). Therefore, the units of electric field strength can be written as N/C or V/m. The given SI units of kg·m/(s²·C) can be rearranged to N/C. This confirms that the quantity being calculated is electric field strength.Other options such as electric potential difference, dielectric constant, electric potential energy, and capacitance have different SI units. Electric potential difference has SI units of volts (V), dielectric constant has no units, electric potential energy has SI units of joules (J), and capacitance has SI units of farads (F). Therefore, the answer to this question is option A.

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A vector has two components: a magnitude and a direction. Magnitude is the length of the vector, and direction is the angle that the vector makes with the x-axis. We can use the Pythagorean theorem to find the magnitude of the vector a.Magnitude of vector a :

\(a = √(a_x² + a_y²)a_x = -5.00 ma_y = 9.00 m\)

Substituting the values in the formula, we get;

\(a = √((-5.00 m)² + (9.00 m)²)a = √(25.00 m² + 81.00 m²)a = √1066 m²a = 32.7 m\) (rounded to one decimal place)

Now, to find the direction of the vector, we can use trigonometry. The direction of the vector a is given by the angle that the vector makes with the positive x-axis. We can find this angle using the tangent function.

\(tan θ = a_y / a_xtan θ = (9.00 m) / (-5.00 m)θ = -60.3°\) (rounded to one decimal place)The angle is negative because it is measured clockwise from the positive x-axis. Therefore, the magnitude of the vector a is 32.7 m, and the direction of the vector is 60.3° clockwise from the positive x-axis.

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The final speed after the collision of the blocks is 5u/4. The final speed is given in terms of initial velocity.

Given:

Mass of the first block, m

Mass of the second block, 3 m

The initial velocity of the first block, 2u

The initial velocity of the second block, u

The momentum can be determined from the product of mass and velocity.

From the conservation of momentum:
initial momentum = final momentum

2mu + 3mu = (3 m+m) v

The final speed is:
5mu = 4mv

v = 5u/4

Hence, the final speed after the collision of the blocks is 5u/4. The final speed is given in terms of the initial speed.

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#Complete question is:

shows two blocks sliding on a frictionless surface. eventually, the smaller block overtakes the larger one, collides with it, and sticks. suppose that m

What is the speed of the two blocks after the collision?

The free body diagram shows the forces that act on the object.

We know that force is a vector quantity as such the direction of the force can also be seen to be very important and this is what have given rise to the idea of the free body diagram because it would show all the forces that have acted on the objects.

In effect, what we have been asked to do here is to draw the free body diagram of the system that is under study here. In this diagram all of the forces that is acting on each of the objects must be balanced.

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Answer:basketball

Explanation: football is a one way ticket to brain damage

Answer:

6

Explanation:

cause logic

Answer:

Silver

Explanation:

density = mass / volume

           = 273 g / 26 cm^3 = 10.50 gm /cm^3

( cc = ml )

The monomer used as the building block in polyethylene is ethylene.

Polyethylene is a common polymer that is widely used in various applications. It is formed through the polymerization of ethylene monomers. Ethylene (C2H4) is an unsaturated hydrocarbon consisting of two carbon atoms and four hydrogen atoms. During the polymerization process, ethylene molecules undergo a chemical reaction where the double bond between the carbon atoms is broken, allowing the carbon atoms to form chains with other ethylene molecules. These chains continue to grow, resulting in the formation of a long-chain polymer known as polyethylene. The properties of polyethylene can vary based on factors such as the polymerization process and the presence of additives, resulting in different forms of polyethylene with varying densities and mechanical properties.

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Time taken by the car to travel 300 miles is 4.615 hours.

The speed of any moving object is the ratio of the distance traveled and the time taken to cover that distance.

Given is the distance d = 300 miles and the speed s = 65 miles/hour, then the time taken t will be

s=d/t

65 = 300/t

t= 4.615 hours

Thus, time taken by the car to travel 300 miles is 4.615 hours.

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