What minimum horizontal force F will jut prevent the 5. 0 kg block from liding if the coefficient of friction between the wall and the block i 0. 65?

The time taken by oxygen to diffuse a distance of 1 mm in water at room temperature is 500 s.

Given that, travel distance = 1 mm

Diffusion constant for the molecule of oxygen in water = 1* 10⁻⁹ m²/s

We know the formula, t = x²/2D

where, t is time taken for diffusion in seconds

x is the distance (1 mm = 10⁻³ m)

D is the diffusion constant

t = x²/2D = (10⁻³)²/2*1* 10⁻⁹ = 1000/2 = 500 s

Thus, the time taken for oxygen to diffuse at room temperature is 500 s.

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Answer: When you dive into water, your body is moving quickly and has a lot of kinetic energy. This energy is converted into potential energy as you move down into the water. You reach greater depths because you have more potential energy. When you do a belly flop, your body is moving more slowly and doesn't have as much kinetic energy. This means that less energy is converted into potential energy, and you don't reach as great of depths.

The average force of the beam expert is 648,365.

The force applied by a body that's traveling at a definite velocity for a definite period of time is called average force.

mass of pile driver (m) = 1900 kg

distance of pile driver to steel beam (s) = 4.80m

depth of steel driven (d) = 13.4= 0.134 m

acceleration due to gravity (g0 = 9.8 m/s^{2}

calculate the average force exerted on the pile driver by the beam.

from work done = force x distance

work done = change in potential energy of the pile driver

equating the two equations above we have

              force x distance = m x g x (s - d)

             f x 0.134= 1900 x 9.8 x (4.80- (-0.134))

             d = - 0.134because the steel beam went down at we are taking its  

             initial position to be an origin point which is 0

             f = ( 1900x 9.8 x (4.80- (-0.134)) ) ÷ 0.134

=648,365

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The force at which water is shot is 1.18 × 10^-2 N

How do you calculate water pressure at a depth?

Water pressure at a depth is given by , P=gh, where h represents the difference between the height of the water's surface and the height of the measurement point, such as the outlet of a hose leaving a storage tank,

In the given problem

diameter of hole = 3mm

radius,r = 1.5mm

Pressure of the hole = ρgh

ρ=1000 Kg/m^3

Force =  Pressure × Area

         = ρgh × πr^2

         = 1000× 9.8× 17× 10^(-2) × 3.14 ×  (1.5× 10^(-3))^2

         = 1.18× 10^(-2)

Therefore the force at which water is shot is  1.18× 10^(-2)

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Increases as a result of the boulder's kinetic energy, which came from its accelerating descent to the ground, and potential energy, which came from it resting on the top of the cliff.

The energy that an object has as a result of its motion is known as kinetic energy in physics. It is described as the effort required to move a mass-based body from rest to the indicated velocity. The body holds onto the kinetic energy it acquired during its acceleration unless its speed changes. The body exerts the same amount of effort when slowing down from its current place to rest. Formally, kinetic energy is any term in the Lagrangian of a system that contains a derivative with respect to time.

In classical mechanics, the kinetic energy of a mass m object moving at a speed. Only when v is considerably slower than the speed of light is this a good approximation in relativistic mechanics.

The English unit of kinetic energy is the foot pound, while the joule is the standard unit.

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The correct answer is 3.7 m

There are many forms of energy, which prevail, however, all these forms of energy generally come under two basic categories, that is, potential energy and kinetic energy. The different forms of potential energy are chemical energy, mechanical energy, gravitational energy, and nuclear energy.

Here, in this question,

Bullet with least kinetic energy will produce least compression.

And since the Kinetic energy of B is least so the compression produced will also be the least.

M(B) = 125 g

        = 8.099 * 10⁻³ kg

V(B) = 945 ft/s = 288.036 m/s

Now using the energy conservation,

(1/2)*M(B)*V(B) = 1/2*k*x²

8.099 * 10⁻³ * (288.036)² = 49 * x²

x² = 13.71

x = d = 3.7 m

Therefore the force constant at which the spring shows the least kinetic energy and compression is 3.7 m

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[NOTE: THIS IS AN INCOMPLETE QUESTION. THE COMLETE QUESTION IS:

Constants Part You want the maximum compression of the spring to be 0.28 m. What must be the force constant of the spring? Express your answer with the appropriate units. In your job in a police lab, you must design an apparatus to measure the muzzle velocities of bullets fired from handguns. Your solution is to attach a 2.00 kg wood block that rests on a horizontal surface to a light horizontal spring. The other end of the spring is attached to a wall. Initially the spring is at its equilibrium length. A bullet is fired horizontally into the block and remains embedded in it. After the bullet strikes the block, the block compresses the spring a maximum distance d. You have measured that the coefficient of kinetic friction between the block and the horizontal surface is 0.38. The table below lists some firearms that you will test. A grain is a unit of mass equal to k = 49 N m Submit Previous Answers 64.80 mg Correct N Correct answer is shown. Your answer 50.86 of significant figures than required for this part. was either rounded differently or used a different number III Bullet ID Bullet Muzzle Type Mass Velocity (grains) (ft/s) .38Spec Glaser 80 1667 Blue A Part D B 125 945 .38 Spec Federal .44Spec Remington .44Spec Winchester For the bullet that produces the minimum spring compression, what is the compression d if the spring has the force constant calculated in part C? Express your answer with the appropriate units. с 240 851 D 200 819 μΑ ? E .45ACP Glaser Blue 140 1355 de Value Units Submit]

It is acceptable to fasten cables with conductors not smaller than two 6 AWG or three 8 AWG conductors directly to the lower edges of the joists when Type NM cable is installed at an angle with joists in unfinished basements and crawl spaces.

With a few guidelines in mind, nonmetallic sheathed cable can be used in basements. if the cable is installed at an angle to the joists and is a 12 AWG. The cable will need to be pulled through bored holes or along running boards. The cable cannot be stapled along the joist's underside.

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Independent variable is Thermal Energy Transfered

Dependent variable is Types of Material

used

First let us understand what does an independent and dependent variable means

Independent variable is The variable that doesn't changes with the change in other variables and they are not affected by their changes.

Dependent variable are The variable

that changes with the change in other variables and they are affected by their changes

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Answer:

Explanation:

1. mass of each sample

2. type of material used

3. temperature over time

edge 2022

derivation of moment of inertia from the sum of torques and sum of forces equation is I=mr(g-rα(net)/ α(fr) + α(net)

In physics, a moment of inertia is a quantitative measure of a body's rotational inertia—that is, the body's resistance to having its speed of rotation about an axis altered by the application of a torque (turning force).

Torque on system = (mg) x r - (m xa)x r -

a = rα(net) (the relationship between linear and rotational acceleration)

SO, T = mgr - mr2 α(net)

Torque is also given by T = I α

here α =α(fr) + α(net)

Hence α(fr) + α(net)= mgr - mr2 α(net)

I=mr(g-rα(net)/ α(fr) + α(net)

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The velocity of air is 18.60×10⁻⁶m/s.

Film temperature, T f = (Ts+T∞)/2

                             T f = (80+20)/2

                             T f = 50°C

                             T f = 323K

β=1/T

β=1/323

β=3.096×10⁻³

By Interpolation,

v= 15.8g +(20.92-15.89)(323-300)/(350-300)

v=18.60×10⁻⁶m/s.

Velocity is described as a vector measurement of the charge and path of motion. Placed truly, speed is the velocity at which something moves in one course. The velocity of an automobile travelling north on a chief parkway and the velocity of a rocket launching into the area can each be measured using speed.

The distinctive styles of velocities are uniform speed, variable velocity, common pace and immediate pace. Uniform velocity: A body is stated to be shifting with uniform speed if its average pace among any two factors along its course is equal in importance as well as path.

The SI unit of velocity is metre per/sec (m/s). as an alternative, the speed magnitude can also be expressed in centimetres per 2nd (cm/s).

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If a baseball dropped from the roof of a tall building takes 3.1 seconds to hit the ground, the height of the building would be 47.1 m.

According to Newton's second law of motion,

[tex]s=ut+\frac{1}{2}at^{2}[/tex]

Where, s is the distance covered by the body, u is its initial velocity, t is the time taken by the body, and a is the acceleration of the body.

Here, the distance covered will be equal to the height of the building.

Since the ball was dropped, its initial velocity will be zero.

Also, the acceleration of the ball is the acceleration due to gravity, [tex]g=9.8 m/s^{2}[/tex].

Substituting the values,

[tex]h=0+\frac{1}{2} gt^{2}[/tex]

[tex]h=\frac{1}{2} \times9.8\times3.1^{2}[/tex]

[tex]h=47.1m[/tex]

Therefore, the height of the building would be 47.1 m.

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Collisions between two objects are a fundamental part of the physical world. The collision process can be broken down into three distinct stages:  impact, compression and rebound.

Impact is when two objects come into contact and force is transferred from one object to the other. Compression follows impact and is the result of the objects being forced together, resulting in the objects being deformed. Rebound is the final stage and occurs when the deformation of the objects is released.

Resulting in the objects separating and returning to their original state. The impact stage of a collision is the most important as it’s what initiates the collision and determines how much force is transferred between the two objects. The compression stage of a collision is the result of the objects being forced together and deformed.

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Since they both have the same starting PE and KE, they would be the same according to the supplied statement.

Speed is defined as the ratio of the distance traveled to the time required to cover that distance. Speed is a constant of proportionality since it just has a component and no magnitude.

Speed is calculated by dividing the distance traveled by the amount of time it required to get there. Divide the distances by the speed to find the passing time. Combine the speed by the time to find the distance. These equations may appear shortened as s=d/t

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A g type star of 5800k is cooler than a O star and hotter than m type star.

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Chemical change is undergoing the marshmallow

A chemical change occurs when one chemical substance is transformed into one or greater exceptional materials, including whilst iron will become rust.

Chemical change is defined as the process in which the atoms of 1 or more materials are rearranged or blended to shape a new substance. Whilst a substance undergoes chemical change, the chemical properties of the substance changes and it's atoms converted into a special substance with one of a kind chemical composition.

A chemical change, also known as a chemical reaction, is a procedure in which one or extra materials are altered into one or greater new and specific substances. In other words, a chemical alternate is a chemical reaction regarding the rearrangement of atoms.

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Answer:

Explanation:

A i think :3

The majority of the space in the gold, which is occupied by low mass electrons, is blasted out by the massive alpha particles.

It is a positively charged particle released during the radioactive disintegration of certain substances. The bonding of the two protons and two neutrons gives the alpha particle its mass. Thus, the Helium-4 nucleus and the Alpha ray nucleus share many similarities.

An alpha particle is the first one. These particles, which are the heaviest of all radiation particles, are made up of two protons and two neutrons.

The electron is the fundamental particle with the least mass.

The area where you would reject the null hypothesis would be narrower the lower the alpha level. Therefore, if your region is small, the likelihood that you will fail to reject the null when you ought to is higher.

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The angular momentum of the system (ball and bar) is conserved about the hook because neither the hook nor gravity exerts any torque on this system about the hook.

The rotating inertia of an object or system of objects when they are moving about an axis that may or may not pass through them is described by a property known as angular momentum. The daily rotation of the Earth's axis and its yearly orbital revolution around the Sun give the planet its spin angular momentum. Since angular momentum is a vector quantity, both its magnitude and direction must be determined in order to fully represent it. The angular momentum of an orbiting object is proportional to its linear momentum, which is determined by dividing the mass (m) by the linear velocity (v) and by the perpendicular separation (r) from the axis of rotation.

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The velocity profile shows the velocity's magnitude in relation to position.

The velocity distribution at a cross section of a pipe with laminar flow will have a parabolic form, with the greatest velocity at the center being around double the average velocity in the pipe.

The change in bulk temperature, average dynamic pressure, and friction factor are all connected to the shape of the velocity profile.

AsuU=sin, where U is the free stream velocity and is the local boundary layer thickness, we may calculate the velocity profile within the boundary layer for flow over a plate.

For use in fluid mechanics and fluid flow measurement, PSI developed the ultrasonic velocity profile measuring technique. It makes advantage of immediate Doppler shift frequency detection and pulsed ultrasonic echography.

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Fast is the temperature rising on the bug's path after 8 seconds 0.75 degree C/s.

Given temparature  T=T(x,y)

position of the bug after 't' sec is given by

[tex]x=\sqrt{1+t} , y=4+\frac{1}{8}t[/tex]

at t=8 sec x=3 and y=5

rate of change of temparature is given by

[tex]\frac{\mathrm{d} T}{\mathrm{d} t}=\frac{\partial T}{\partial x}\frac{\mathrm{d} x}{\mathrm{d} t}+ \frac{\partial T}{\partial y}\frac{\mathrm{d} y}{\mathrm{d} t}[/tex]

[tex]\Rightarrow \frac{\mathrm{d} T}{\mathrm{d} t}=T_{x}\frac{1}{2\sqrt{1+t}}+T_{y}\frac{1}{8}[/tex]

at t=8 sec i.e., at x=3,y=5

given [tex]T_{x}(3,5)=7 , T_{y}(3,5)=2[/tex]

therefore rate of change of temparature in the bug's path is

[tex]\frac{\mathrm{d} T}{\mathrm{d} t}=3\frac{1}{2\sqrt{1+8}}+\frac{1}{8}(2)[/tex]

[tex]\Rightarrow \frac{\mathrm{d} T}{\mathrm{d} t}=\frac{1}{2}+\frac{1}{4}=0.75^{\circ}C/s[/tex]

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Arrange these three groups in a circle with arrows pointing from igneous to sediment to metamorphism and metamorphism to igneous.

A rock cycle is a process of transforming one type of rock into another. There are three main types of rocks igneous rocks, metamorphic rocks, and sedimentary rocks. It can be melted by magma, eroded by sediments, or compressed and metamorphosed.

Rock circulation is a fundamental concept that describes the transition between three rock types metamorphic igneous and sedimentary rocks. Simply put it is a set of processes that create and transform rock types within the Earth's crust. Rock circulation is a model that describes the formation degradation and regeneration of rocks as a result of sedimentation magma and metamorphism.

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Solar energy is not similar to the light energy.

Solar Radiant or light energy is the energy produced by the Sun due to the  nuclear fusion reactions and is transmitted to the earth through space by electromagnetic radiation in the form of quanta or packets of energy called photons.

Solar energy is not exactly similar to light energy. A lot of the energy radiated by the Sun is in the form of "light", i.e. it is visible to human eyes. But a lot of the energy is invisible to us, as some of the frequencies are outside the visible light spectrum. Whereas, Light energy is a kind of kinetic energy with the ability to make types of light visible to human eyes. Light is defined as a form of electromagnetic radiation emitted by hot objects like lasers, bulbs, and the sun. Light contains photons which are minute packets of energy.

Hence, solar energy is not similar to light energy.

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When a solid melts Heat energy enters the substance

The way that the word "heat" is defined in thermodynamics is very different from how we often use it. Heat is the thermal energy that is transmitted when two systems with different surface temperatures come in contact. Heat is denoted by the letters q or Q, and the unit of heat measurement is joules.

Since heat is defined in the context of a process that permits energy to be transported, it is occasionally referred to as a process quantity. Although the heat that a hot cup of coffee transfers to your palm may be analyzed, the heat that the cup of coffee itself contains cannot. Heat is another significant characteristic.

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The acceleration of the body is 2 [tex]\frac{m}{s^{2} }[/tex] while the deceleration is - 1.2 [tex]\frac{m}{s^{2} }[/tex] .

Acceleration can be defined as the rate of change of velocity with respect to time.

Deceleration is the reduction in speed or rate.

It has been stated in the question that the body accelerates for 3s and then decelerates to 2s. This implies that the total time that the object spent in motion is 5 s. So

vf = vi + at

as indicated in the equation ;

vf = final velocity

vi= initial velocity

a = acceleration

t = time taken

So the formula for acceleration will be;

a = [tex]\frac{vf - vi}{t}[/tex]

a = [tex]\frac{6 - 0}{3}[/tex]

a= 2 ms⁻²

This is the acceleration of motorcyclist. Now we will find the deceleration as follows;

a =  [tex]\frac{vf - vi}{t}[/tex]

a= [tex]\frac{0 - 6}{5}[/tex]

a = -1.2ms⁻²

Your question is incomplete but most probably your full question was;

A motorcyclist starts from rest and reaches a speed of 6 m/s after travelling with constant acceleration for 3s.

a. What is his acceleration?

b The motorcyclist then decelerates at a constant rate for 2s. What is his

acceleration?

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The equation the represent the line that passes through (9, 3) and jada slope 6 is 6X-Y = 51.

The equation of the line that passes through the point (a, b) and has a slope m will have the equation as follows,

(Y-b)/(X-a) = m

Here in this case,

The line is passing from the point (9, 3) and has slope 6.

So, we can write the equation of the can be written as,

(Y-3)/(X-9) = 6

Now solving further,

Y - 3 = 6X - 54

6X-Y = 51.

Hence, the required equation of the line is 6X-Y = 51.

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The point of max deflection for certain beams based on applied load is at 11q₀L/40.

What is deflection due to triangular load?

The deflection due to the triangular load is usually given as:

σ₁ = 11q₀L⁴/120EI

Deflection due to reaction (R)(σ₂) =

RL³/3EI

⇒ σ₁ = σ₂⇒ 11q₀L⁴/120EI

= RL/3EI= R

= 11q₀L/40

What is the significance of deflection in a beam?

In terms of structural engineering, a beam or node moving from its initial location is referred to as deflection.

It occurs as a result of the loads and forces that are placed on the body.

Deflection, also known as displacement, can result from the weight of the body structure itself or from externally applied stresses.

What is the relevance of deflection due to triangular load?

A structure's deflection must be taken into account during design, and the consequences of not doing so can be disastrous.

Deflections may be caused by various loads. These include, among others,

Therefore, the point of max deflection for certain beams based on applied load is at 11q₀L/40.

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The output power of the rider that is required to maintain a constant speed is 4,067 J/s.

While input power​ refers to the amount of energy put into a device, the ​ output​ power refers to the amount of energy that comes out.

Also, power is the rate at which energy is dissipated or consumed or given out.

The output power of the rider that is required to maintain a constant speed of 5.0 m/s (about 11.2 mph) up a 5.0% grade (a road that rises 5.0 m for every 100 m along the pavement) is calculated as follows;

P = Fv

P = mgv

where;

P = 83 kg x 9.8 m/s² x 5 m/s

P = 4,067 J/s

Thus, the output power of the rider that is required to maintain a constant speed depends on the mass, acceleration due to gravity and velocity of the rider.

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For a real gas to approach the properties of an ideal gas, the pressure should be low, the attraction between the molecules should be high and temperature should be high.

       where,  p= pressure

                    V= volume

                    n= number of moles

                    R= ideal gas constant

                    T= temperature

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The magnetic field forms a 51.8 ⁰C angle with an axis perpendicular to the plane of the triangle.

The total territory enclosed by the three sides of any particular triangle is defined as its area. In general, it is equal to half of the base times the height, i.e. A = 1/2 b h. The sum of a triangle's three interior angles equals 180 degrees. If ABC is a triangle, then A + B + C = 180°, according to this theorem. Theorem 2: An isosceles triangle's base angles are equivalent.

A triangle's total area is equal to half of its base multiplied by its height. The altitude is calculated using the Pythagorean equation.

h=√(8cm)-(4cm)=4/3cm

As a result, the area of a triangle,

A=0.5bh-(0.08m)(4/3x10m)-2.77x 10m

Then, align equation (2) for e to get

e=cos 1

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In the case of a 9.0-cm-long spring attached to the ceiling, the spring constant is 207.1. The spring can be stretched to a height of 15 cm by hanging a 1.9 kilogram mass from it.

The "spring constant," or "k," is a quantity that effectively indicates how "stiff" a spring is. It is represented by the letter "k." A greater value of k indicates that more pressure is necessary t extend it a given distance than would be necessary to stretch a spring with a lower stiffness a similar distance.

F = mg

k = ( 1.9) (9.81) = 18.639N

F/x =18.639 /0.09 =207.1.  N/meter

F = -kx. The spring constant, k, is a proportional constant. It gauges how firm the spring is. When a spring is compressed or extended to a length that differs by an amount x out of its equilibrium length, it produces a force F = -kx that pushes it back towards its equilibrium position.

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The correct question is

A 9.0-cm-long spring is attached to the ceiling. when a 1.9 kg mass is hung from it, the spring stretches to a length of 15 cm . you may want to review ( pages 219 - 221) . part a what is the spring constant k?

Alpha decay is a type of nuclear decay occurring by the emission of alpha particles. Thus the nuclei changes to a new nuclei with mass number decreased by 4 units and atomic number decreased by 2 units from the parent atom.

Nuclear decay is the process of radioactive decay of unstable isotopes to form its stable isotopes or new nuclei.  Unstable atoms undergo nuclear decay by the emission of alpha or beta particles or by  electron capture.

In alpha decay,  an alpha particle that is a helium nuclei is emitted with the new nuclei where the mass number reduces by 4 and atomic number reduces by 2.

For instance consider the alpha decay of carbon -14 produces stable beryllium -10 with an alpha particle.

[tex]\rm _{6}^{14}C \rightarrow _{10}^{4}Be + _{2}^{4}He[/tex].

Similarly in beta decay, an electron is emitted where the atomic number increases by one and mass number does not change.

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