Kinetic energy is the energy associated with its position or composistion. True or false

 3,958 miles miles would you have to dig

The mile, sometimes the best of international mile or statute mile to distinguish it from the  other miles, is a British imperial unit and United States customary to know unit of to the relative distance; both are based on to the older English unit of to the length equal to 5,280 English-english feet, or 1,760 yards.

Well, it depends what you mean by “bottom.” Earth is the  ball, so if you wanted to dig in to  the center of it, it's 3,958 miles. But if you wanted to dig all the way throughs and pop out the other side, it's twice as far, or 7,916 miles.

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The force does the water stream exert on the plate is calculate 19.631 N.

Force:

The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving state of a body. It has a direction and a magnitude.

diameter=5cm

Velocity of jet=30m/s

Velocity of plate=20m/s

Cross-sectional area of jet=19.36 cm²

Mass flow rate which strikes the plate = ρ x A x (v - v₀)

Thus force= ρ x A x (v - v₀)²

F = 19.631 N

The force does the water stream exert on the plate is calculate 19.631 N.

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A force of 80 newtons is applied to the combined masses.acceleration of the system is =40/3 or 13.33 metre/sec².

acceleration, rate at which velocity changes with time, in terms of both speed and direction. A point or an object moving in a straight line is accelerated if it speeds up or slows down. Motion on a circle is accelerated even if the speed is constant, because the direction is continually changing.

acceleration of object A= FORCE APPLIED ÷ MASS OF A

                                                               =80÷ mass of A

                       mass of A = 80÷ acc of object A

                        mass of A= 80÷20=4kg

                         mass of A = 4kg

acc of object B = force applied ÷ mass of B

 mass of object B =force applied ÷ acc of object B

 mass of object B=80÷40=2kg

mass of object B =2Kg

when same force is applied to the combined system of 4kg and 2kg then acceleration of the combined mass is = force applied ÷ total mass

=80÷[4+2]

=80÷6

=40÷3

=13.333 metre/sec²  

acc of the combined system is 13.333 metre/sec²

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the ratio of the masses of the two ropes is 0.51

Calculation :

For a rope, the speed of standing wave is given as

\(v = \sqrt{\frac{T}{m/L} }\)

Here, as T  and L is same for both the ropes

v1 = 1.4v2

as v1 /v2 = sqrt(m2/m1)

1.4 = sqrt(m2/m1)

m1/m2  = 0.51

the ratio of the masses of the two ropes is 0.51

Mass is an inherent property of an object. Mass is a standard mechanical quantity. Until the discovery of atomic physics and particle physics, it was traditionally thought to be related to the amount of matter in the physical body. are found to have different masses for the same amount of matter. Mass has several definitions in modern physics that are conceptually different but physically equivalent

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Answer:

Radioactive Decay

Explanation:

The distance traveled by the hockey player is 0.025 m.

The final velocity of the hockey play is calculated by applying the principle of conservation of linear momentum;

\(m_1v_1 = m_2 v_2\\\\v_1 = \frac{m_2 v_2}{m_1} \\\\v_1 = \frac{0.150 \times 45}{90} \\\\v_1 = 0.075 \ m/s\)

The time taken for the puck to reach 15 m is calculated as follows;

\(t = \frac{d}{v} \\\\t = \frac{15\ m}{45 \ m/s} \\\\t = 0.33 \ s\)

The distance traveled by the hockey player at the calculated time is;

\(d = vt\\\\d = 0.075 \ m/s \ \times 0.33 \ s\\\\d = 0.025 \ m\)

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Given:

The applied force is,

The mass of the object is,

The constant velocity of the object is,

To find:

The coefficient of friction between the object and the surface

Explanation:

The object is moving with a constant velocity which means the object is under equilibrium. So, the applied force is equal to the frictional force on the object.

If the coefficient of friction between the object and the surface is

we can write the frictional force as,

For equilibrium condition,

Hence, the coefficient of friction between the object and the surface is 0.47.

The experiments to demonstrate the conservation of momentum with the two billiard balls of known masses, m₁ and m₂, and velocities u₁ and u₂. The balls are then made to collide with velocities v₁ and v₂ after the collision

The momentum before and after the collision is then calculated as follows:

The momentum of a body is the product of the mass and the velocity of the object.

Mathematically;

the momentum of a body is determined as follows:

Momentum = mass * velocity

Momentum is conserved if the momentum before and after the collision is equal.

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In order to determine the density of a cylinder, we need to know its mass and volume. The mass of the cylinder is given as 29.2 grams, but the volume is not provided. Without the volume, it is impossible to calculate the density of the cylinder.

As for whether or not the cylinder will float in water, that also depends on its density. If the density of the cylinder is less than the density of water (1), then it will float. However, without knowing the density of the cylinder, it is impossible to determine whether or not it will float in water.

Answer:

you are going 1 mile per hour depending on how fast

Explanation:

The correct statement about what happens to a low-mass star after helium flash is:

b. It shrinks and heats up.

A helium flash is a very brief thermal runaway nuclear fusion of large quantities of helium into carbon through the triple-alpha process in the core of low mass stars (between 0.8 solar masses (M☉) and 2.0 M☉[1]) during their red giant phase (the Sun is predicted to experience a flash 1.2 billion years after it leaves the main sequence). A much rarer runaway helium fusion process can also occur on the surface of accreting white dwarf stars.

After the helium flash, the core of the low-mass star contracts, causing it to shrink and heat up. This increase in temperature allows helium to burn steadily in the core, and the star resumes its position on the horizontal branch of the Hertzsprung-Russell diagram.

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Answer:

B

Explanation:

just took the test

Answer:

b

Explanation:

Answer:  his total speed would be 3 seconds

Explanation: because if you mulimply 10 x 3 you get 30 meaning that your answer would be 3

Answer:

the basketball player must leave the ground with a velocity of 4.748 m/s

Explanation:

Given that data in the question;

From the third equation of motion;

v² - u² = 2as

such that;

u² = v² - 2as

where u is the initial velocity, v is the final velocity, s is the displacement and a is acceleration

so initial velocity of the basket ball player will be;

u = √( v² - 2as )

so from the question; s is 1.15 m and a = - 9.8 m/s² { player is under negative acceleration to get to the ball } and final velocity of the player will be 0.

so we substitute

u = √( (0)² - (2 × -9.8 × 1.15 )

u = √ -( - 22.54 )

u = √ ( 22.54 )

u = 4.748 m/s

Therefore, the basketball player must leave the ground with a velocity of 4.748 m/s

: Molecular magnet can refer to : molecular based magnet . An unconventional magnetic material that consists of organic molecules cordination compounds and combination

Answer:

-7.5

Explanation:

edge 2021

The pace at which electrons flow past a location in a complete electrical circuit is defined as current.

In a circuit, the maximum alternating voltage and current are 400 V and 20 A, respectively. The alternating values have a frequency of 50 hertz and are sinusoidal. Current is the rate at which a charge moves through a circuit point. The highest current might be drawn while the external resistance is zero. Electromotive force, abbreviated E or emf, is the amount of energy per unit electric charge delivered by an energy source such as a generator or a battery. As the gadget works on the electric charge being transported inside itself, energy is changed from one form to another in the generator or battery.

Electromotive force (also electroosmotic, abbreviated emf, indicated or) is an energy transfer to an electric circuit per unit of electric charge, measured in volts, in electromagnetism and electronics. Electrical transducers generate an emf by transforming various types of energy into electrical energy.

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Answer

Explanation

Answer:

Explanation:

Performing physical activities helps to build a healthy relationship with yourself, in the sense that physical activity promotes health at all levels. Health is a set of physical, mental and social well-being, so physical activity reaches all these levels and increases the quality of life for a person as a whole.

There are several types of physical activities that can be performed and you can choose the one that best fits your preferences and routine. A walk for example can be done in any safe place and at any time and it already helps in improving physical conditioning, in receiving serotonin and endorphins, in reducing blood pressure and protecting the heart and in improving mental health.

So the ideal is for each person to set their own goals in relation to their health and seek to achieve them, either to have a better quality of life, to socialize more with people, to prevent diseases, etc.

Physical exercise helps build relationship by:

This is known to be any physical activities such as walking, running, etc., that is often done so as to keep the body fit.

It is very important when as it helps one to maintain a good balance of mental health. As a person moves their body, there is the release of endorphins that functions to make us feel good and helps handle the effects of stress and anxiety. The more a person exercise, the less mental health cases and more happier relationships.

Note that Values are the drive force of  your actions and they push or motivate as you set your life goals. They help to eliminate any obstacle in term of foreign ideas that are against one's value and it keeps one's focus on the goal.

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The magnitude of reaction at the beam due to the distributed load of 25 kN/m is 625 N.

The magnitude of reaction at the beam can be determined by calculating the total force exerted by the distributed load. In this case, the distributed load is given as 25 kN/m. To find the magnitude of reaction, we multiply the distributed load by the length of the beam.

Therefore, the magnitude of reaction is 25 kN/m multiplied by the length of the beam in meters. By performing the calculation, we obtain the value of 625 N as the magnitude of reaction at the beam due to the distributed load. This represents the total force exerted by the distributed load on the beam.

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Explanation:

The conductivity of water can be increased by adding any solute that increases the number of ions in solution.

Hope this helps you.. Good luck

The conductivity of water can be incrased by adding to it anything that disolves and ionizes in it.

Examples:

-- sugar

-- coffee

-- tea

-- artificial sweetener  

-- baking soda

-- orange juice

-- corn starch

-- salt

Answer:

Maybe pistil or ovary

pistil usually is located in the center of the flower and is made up of three parts: the stigma, style, and ovary

Answer:

A. Ovary

Explanation:

Answer:

\( the \: average \: speed \: of \: the \: boat \: between \: 4 \: and \: 6 \: \\ minutes \: = \frac{1000 - 500}{6 - 4} = \frac{500}{2} = 250\)

note: cant really see the measuring units for clear unit for the value, however the average speed is 250 meter/mins, from observation.

Answer:

Given,

Object distance, u=25cm

Focal length, f=20cm

From mirror formula

f

1

​

=

v

1

​

+

u

1

​

−20

1

​

=

v

1

​

−

25

1

​

⇒

v

1

​

=−

20

1

​

+

25

1

​

v=100cm

The image will be real, inverted magnified

Explanation:

Given,

Object distance, u=25cm

Focal length, f=20cm

From mirror formula

f

1

​

=

v

1

​

+

u

1

​

−20

1

​

=

v

1

​

−

25

1

​

⇒

v

1

​

=−

20

1

​

+

25

1

​

v=100cm

The image will be real, inverted magnified

The environmental problems most directly associated with increased demands for disposable products and their packaging are solid waste disposal.

The use of disposable products contributes to the generation of large amounts of waste, including packaging materials such as plastic, paper, and other non-biodegradable materials. Improper disposal of these materials can lead to pollution of landfills, oceans, and other natural habitats, causing harm to wildlife and ecosystems. Additionally, the production and disposal of disposable products require significant amounts of energy and resources, contributing to environmental degradation. While other options such as food web contamination, atmospheric depletion, and the use of nuclear fuels may also have environmental impacts, solid waste disposal is the most direct and immediate consequence of increased demands for disposable products and their packaging.

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Answer:

Explanation:

the SI base unit of mass length and time

mass =kg =kilogram

length=m=meter

time=s=second

Answer:

mass: kilogram length: metre time: seconds

Explanation:

Answer:

Thank me mark me brainliest

Explanation:

I did not explain because i got a photo

(a) The pressure between the student and the floor is 817 Pa.

(b) The pressure between the student and each nail 14,848 Pa.

Pressure is calculated by dividing force by area. The force exerted on the floor by the student is equal to their weight, which is the force of gravity acting on their mass.

The weight of the student can be calculated as follows:

W = mg

W = 50 kg (9.8 m/s²)

W = 490 N

So the pressure between the student and the floor can be calculated as follows:

P = F / A

P = 490 N / 0.6 m²

P = 817 Pa

To find the pressure between the student and each nail, we need to divide the student's weight by the total area of the nails' heads.

A (nails) = NA

A (nails) = 3300 x 1 x 10⁻⁷ m²

A (nails) = 0.033 m²

So the pressure between the student and each nail can be calculated as follows:

P = F / A

P = 490 N / 0.033 m²

P = 14,848 Pa

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The velocity ratio of the wedge is 1.64.

To calculate the velocity ratio of the wedge, we first need to find the distance moved by the effort and the load. Since the wedge is piercing the log, the distance moved by the effort is equal to the distance moved by the wedge into the log. The distance moved by the load is equal to the thickness of the log.

Let's start by finding the thickness of the log. The diameter of the log is 20 cm, so the radius is 10 cm. The thickness is half of the diameter, which is 10 cm.

Now we need to find the distance moved by the wedge into the log. We can use the Pythagorean theorem to calculate the length of the hypotenuse of the wedge, which is the distance moved into the log. The hypotenuse is equal to the square root of the sum of the squares of the height and length of the wedge.

height of wedge = 7 cm

length of wedge = 15 cm

hypotenuse = √(7^2 + 15^2) = 16.4 cm

Therefore, the distance moved by the effort is 16.4 cm.

The velocity ratio is then:

velocity ratio = distance moved by effort / distance moved by load

velocity ratio = 16.4 cm / 10 cm

velocity ratio = 1.64

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The yy component of the average acceleration in the snow bank can be determined by analyzing the motion of the object in the vertical direction. The positive yy direction is vertically upward, so we need to consider the forces acting in this direction.

To find the y y component of the average acceleration, we can use the equation:
average acceleration = change in velocity / time taken. The change in velocity in the yy direction is given by the final velocity minus the initial velocity.

If the object is moving upward, the initial velocity in the y y direction is positive and the final velocity is negative (since the object is decelerating). Once we have the change in velocity, we divide it by the time taken to find the average acceleration in the y y direction.

Therefore, the yy component of her average acceleration in the snow bank can be determined by analyzing the motion of the object in the vertical direction and calculating the change in velocity divided by the time taken.

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Answer:

μ = 0.125

Explanation:

To solve this problem, which is generally asked for the coefficient of friction, we will use the conservation of energy.

Let's start working on the ramp

starting point. Highest point of the ramp

         Em₀ = U = m h y

final point. Lower part of the ramp, before entering the rough surface

        \(Em_{f}\) = K = ½ m v²

as they indicate that there is no friction on the ramp

          Em₀ = Em_{f}

          m g y = ½ m v²

          v = \(\sqrt{2gy}\)

we calculate

          v = √(2 9.8 0.25)

           v = 2.21 m / s

in the rough part we use the relationship between work and kinetic energy

          W = ΔK = K_{f} -K₀

as it stops the final kinetic energy is zero

          W = -K₀

The work is done by the friction force, which opposes the movement

          W = - fr x

friction force has the expression

          fr = μ N

let's write Newton's second law for the vertical axis

         N-W = 0

         N = W = m g

we substitute

            -μ m g x = - ½ m v²

           μ = \(\frac{v^{2} }{2 g x}\)

Let's calculate

           μ = \(\frac{2.21^{2}}{2\ 9.8\ 2.0}\)

           μ = 0.125

A 8.0 kg box is released from rest at a height y0 = 0.25 m on a frictionless ramp. The box slides from the ramp onto a rough horizontal surface. The box slides 2.0 m horizontally until it stops.

What is the friction coefficient of the horizontal surface?

Answer: 0.125