A block of mass 3.4 kg, sliding on a horizontal plane, is released with a velocity of 2.5 m/s. The blocks slides and stops at a distance of 1.9 m beyond the point where it was released. How far would the block have slid if its initial velocity were quadrupled

Answers

Answer 1

When the initial velocity were quadrupled, the block would slide and stops at a distance of 30.4 m

Using equation of motion

v² = u² + 2as

Where:

v = final velocity

u = initial velocity

a = acceleration / deceleration

s = distance

In the given problem:

v = 0 (since the block finally stopped)

u = 2.5 m/s

s = 1.9 m

Plug these parameters into the equations:

0 = 2.5² + 2a x 1.9

a = - 1.64 m/s²  (minus sign means deceleration)

Assuming the same force applied, but now the initial velocity were quadrupled. Hence,

u = 4 x 2.5 = 10 m/s

v² = u² + 2as

0 = 10² + 2 x (- 1.64 ) x s

s = 30.4 m

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Related Questions

Donna sent her grandson a birthday present. The box weighed 0.875 kilograms and the present itself weighed 6,800 grams. a. What was the gross weight of the package in kilograms

Answers

The gross weight of the package in kilograms that Donna send to her grandson as birthday present is 7.675 kg.

The weight of the box in which Donna has sent the present (w1)=  0.875 kg. Now  we know, 1 kg = 1000 grams .  So , 0.875 kg = 0.875 * 1000 = 875 grams.

Hence w1=875 grams is the weight of the box in which the present is there.

The weight of the present itself (w2)=6800 grams.

So, the gross weight of the package = w1+w2= 875 +6800 grams = 7675 grams.

So, the gross weight of the package ( the box+the gift) = 7675grams =7675 / 1000 = 7.675 kg.

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Which is the beginning of the formation of the star?

Answers

The material in the cloud's center starts to heat up as it breaks up. This heated core at the center of the collapsing cloud is referred to as a protostar and will eventually turn into a star.

Where do stars form first?

When the denser portions of the cloud core fall apart due to gravity or their own weight, star formation occurs. These cores typically contain gas and dust masses of about 104 solar masses. The cores collapse first because they are denser than the outer cloud.

What marks the start of the end for stars in the main sequence?

A main sequence star eventually reaches the end of its life cycle when the hydrogen in its core is burned out. It departs from the main sequence at this point. White dwarfs are formed when stars with less mass than one-fourth of the mass of the sun do so.

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The material at the cloud's core begins to heat up as it disintegrates. It is known as a protostar and will eventually become a star. It is located at the hot core of the collapsing cloud.

Star formation occurs when the collapsing cloud core's denser regions separate as a result of gravity or their own weight. An average of 104 solar masses' worth of gas and dust can be found in these cores. Being denser than the outer cloud, the cores collapse first. The burning up of the hydrogen in a main sequence star's core signals the end of the star's life cycle. At this moment, it turns away from the main action.

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You throw a ball upward with an initial speed of 3.0 m/s from an initial height of 1.5 m. After you throw the ball, its acceleration is 9.81 m/s2 downward.
Taking upward to be the positive direction, write the position-time equation for the ball's motion.

Answers

The position-time equation of the ball that is thrown upward with an initial speed of 3.0 m/s from an initial height of 1.5 m and afterward, it begins moving downward with an acceleration of9.81 m/s² is:

h = -9.8t² + vt + s

What is a position-time equation?

A position-time equation is an equation that gives the displacement of a moving object directly proportional to both the velocity and time of the object as it moves.

The position-time equation of the ball that is thrown upward with an initial speed of 3.0 m/s from an initial height of 1.5 m and afterward, it begins moving downward with an acceleration of9.81 m/s² is given below:

Using the vertical motion model;

h = -9.8t² + vt + s

where;

h is the maximum height of the ball

v is the initial velocity in meters/second, and

s is the height in meters.

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Answer:

1.5t+3t-4.9t^2

Explanation:

a(acceleration)=-9.81m/s^2

u(Initial Speed)=3m/s

y0(Initial Height)=1.5m

y=y0+ut+0.50(-9.8)t^2

After plugging everything in we get:

y=1.5+3t-0.50(9.8)t^2

After that, you multiply, -0.50 by 9.8 and get:

y=1.5+3t-4.9t^2 as your final answer

The density of ice is 917 kg/m3.
What fraction of the volume of ice will be above the water when the ice is floating in water?
Take the density of water to be 1000 kg/m3.

Answers

The amount of ice that is visible whilst floating in water does have a fractional value of 0.083.

How would you define density?

The density of a material or thing is a measure of how densely its mass is packed. The density of a substance or object may be calculated using the following formula: mass in kilograms divided by volume in cubic meters equals density in kilograms per cubic meter. Density is described as mass spread inside a volume, in other words. Or, to put it in another way, it's the number of kilograms that anything weighing 1 meter cubed weighs. If each cubic meter of the substance weights more, it is denser.

fraction of the ice's volume.

Ice has a known hardness of 917 kg/m3.

Moreover, fresh water density= 1000 kg/m³

Assume that V is the total volume and that v is the amount of ice over water.

Volume displacement in water then equals V-v,

V917g = (V-v) 1000g V-v/V=917/1000 1-v/V=917/1000 v/V=1-917/1000 v/V=83/1000 =0.083 using the law of flotation

0.083 is the resulting fractional value.

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in the figure (figure 1), each capacitance c1 is 6.6 μf , and each capacitance c2 is 4.4 μf . Part A.Compute the equivalent capacitance of the network between points a and b. Express your answer using two significant figures.Ceq = F Part B .Compute the charge on the capacitor C1 nearest to a when Vab = 490 V . Express your answer using two significant figures.Qa1 =

Answers

The charge on the capacitor C1 nearest to a when Vab=490V is:

Qa1 =150μC.

The given Values are:

C₁=6.6 C₂=4.4 Vab=490V

Reduction of the farthest right leg yields:

C=(1/C₁+1/C₁+1/C₁)⁻¹

C=(1/6.6μF+ 1/6.6μF+ 1/6.0μF)⁻¹

C=3.1μF=C₁/3

It combines in parallel with C₂ i.e.,

C=4.4μF+3.1μF=7.5μF=C₁

​So, the next reduction is the same as the first: C=3.1μF=C₁/3

​And the next is the same as the second, leaving 3C₁'s in series.

So, Ceq=3.1μF=C₁ /3.

For the three capacitors nearest to points a and b:

QC₁=CeqV=(3.1×10⁻⁶F)(490V)=1.5×10⁻⁴

Therefore, the equivalent capacitance of the network between points a and b. QC=150μC

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A fluid is flowing with an average speed of 1. 50 m/s through a tube that has a radius of and is 18 cm long. The drop in pressure is what is the viscosity of the fluid?.

Answers

The presented statement indicates that perhaps the fluid's viscosity is 0.038 Pa.s.

What is the straightforward meaning of speed?

The pace at which an object's location changes in any direction is referred to as its speed. The distance traveled in relation to the time it took to travel that distance is how speed is defined. Since speed simply has a direction and no magnitude, it is a scalar number.

Given that

V = 1.5 m/s

r = 2 mm

L = 18 cm

Assuming laminar flow occurs within the tube, the pressure drop is represented by the following equation:

ΔP = 32μL[tex]V^{2}[/tex] / [tex]d^{2}[/tex]

μ = ΔP[tex]D^{2}[/tex] / L[tex]V^{2}[/tex]

μ  = ( 967 * 0.00[tex]4^{2}[/tex] / 0.18 * [tex]1.5^{2}[/tex] ) * Pa.s

μ  = 0.038 Pa.s

The fluid has a viscosity of 0.038 Pa.s.

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The complete question is-

A fluid is flowing with an average speed of 1.5 m/s through a tube that has a radius of 2.0 mm and is 18 cm long. The drop in pressure is 967 Pa. What is the viscosity of the fluid?

What is eustress in your own words?

Answers

Eustress in over own words is a constructive type of stress that has favorable effects on one's health, drive, ability to perform, and emotional stability.

The term "eustress" refers to stress that results in a beneficial response in the body. It is the reverse of distress and can apply to any form of stress, whether physical or psychological, that is helpful to the individual.  It is typically exhilarating and usually only lasts for a brief period of time. People have the impression that this particular form of stress is controllable and can even be motivational. Eustress in over own words is a constructive type of stress that has favorable effects on one's health, drive, ability to perform, and emotional stability.

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what is the upper limit of stars the unaided eye can discern on a moonless night in a rural area?

Answers

The brightest stars and planets fall around -2 on this scale. The top limit is around +5.5 in a rural, unpolluted, serene sky with adequate, unaided vision.

What is Stars?

Stars are any large, gaseous bodies that are self-luminous and emit light as a result of their own internal energy sources. Only a very small portion of the observable universe's tens of billions of trillions of stars are visible to the unaided eye. In pairings, multiple systems, or stellar clusters, there are a lot of stars. These star groupings' members are gravitationally attracted to one another and are physically connected by a shared origin. Stellar associations, which are loose collections of stars with a comparable physical makeup but lack collective mass to maintain their organisation, are somewhat linked to star clusters.

On a scale of apparent luminance, stars are rated. The star is fainter the higher the number. On this scale, the brightest stars and planets fall around -2. In a rural, unpolluted, calm sky with decent, unaided vision, +5.5 is roughly the upper limit. The Pleiades star cluster (M45, if I remember correctly), which contains stars with apparent magnitudes of +3 and fainter, was once employed by the Romans to gauge someone's eye-sight.

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Which of the following is fundamentally different from the others?
Answer

X-rays
gamma rays
sound waves
light waves
radio waves

Answers

Fundamentally, sound waves differ from other waves.

Electromagnetic waves include radio waves, light waves, and X-rays.

Which of the following wave types differs fundamentally from the other four?

Which of the following stands apart from the others fundamentally? Reasoning: Mechanical waves are what make up sound. The remaining responses involve EM waves, which are NOT mechanical waves.

What distinguishes radio waves from light waves in their fundamental properties?

Light and radio waves are both electromagnetic waves; their primary distinction is in their frequency. While the oscillations of the electrons within atoms produce light waves, radio waves are produced by the acceleration of electrons in a radio antenna.

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Is it possible for a light ray to undergo total internal reflection at the air glass interface when it is traveling in air before striking a glass surface?

Answers

Yes, it is possible for a light ray to undergo total internal reflection at the air-glass interface when it is traveling in air before striking a glass surface.

This phenomenon is known as total internal reflection and occurs when a light ray strikes a glass surface at an angle greater than the critical angle, which is determined by the refractive index of the glass.

When this occurs, all of the light is reflected back into the medium it was originally traveling in, rather than passing through the glass surface. This effect is most commonly seen when light travels from air into glass, but can also occur when light travels from one glass surface to another.

For example, a light ray traveling in air can be totally reflected if it strikes a glass surface at an angle greater than the critical angle.

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Help me please it would be greatly appreciated

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The decimal place moves the left when we convert smaller unit to larger units. Decimal place moves to the right when larger unit converts to smaller units. When centimeter is converted to meters, decimal place moves to the left.

What is decimal place?

Decimal places are number of digits coming after the decimal point. The conversion of bigger units to smaller units of amount or any physical quantity move the decimal place to the left and when the reverse is done, decimal place moves to the right side.

Hence, centimeters to meters moves decimal place to left.

megameters to meters - right

kilometers to millimeters - right

micrometer to millimeters - left

millimeters to kilometer - left.

One centimeter = 0.01 m

Hence there are 100 cm in 1 m.

There are 100 years in one century and 1000 years in a millennium.

One millimeter is 10⁻³ m. Then there are 1000 mm in one m.

One microliter is 10⁻⁶ L. Then there are 10⁶ microliters in one liter. There are 1000 m in one kilometer. One megagrams is 10⁶ grams.

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While following directions on a treasure map , Jack Pott walks 45.0 m south , then turns and walks 7.50 m east . Which single straight - line displacement could the treasure hunter have walked to reach the same spot ?

Answers

The  hunter have walked to reach the same spot 45.62 m in  single straight - line displacement.

What is displacement?

The term "displacement" refers to a shift in an object's position. It is a vector quantity with a magnitude and direction. The symbol for it is an arrow pointing from the initial location to the ending place.

Jack Pott walks 45.0 m south and then he walks 7.50 m east .

Total displacement = √(45.0²+7.50²) m = 45.62 m.

Hence, the  hunter have walked to reach the same spot  45.62 m in  single straight - line displacement.

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A person scuffing her feet on a wool rug on a dry day accumulates a net charge of -41 μ
C. How many excess electrons does she get? By how much does her mass increase?

Answers

Based on the provided information, the excess electrons are 2.559 x 10^14 electrons and mass increase would be 2.329 x 10^-16 kg.

In the given case, as the electron affinity of the wool is less than human body, some amount of electron will be transferred from wool to the feet of the person. The total amount of charge that is accumulated on her feet is -41 micro coulomb. When a body gets negative charge, an integral amount of electronic charge is transferred to the body.

Total charge = number of electrons × one electronic charge

Q = n x e

As e = - 1.602 x 10^-19 coulomb and Q = -41 micro coulomb = -41 x 10^-6 coulomb

Hence,

-41 x 10^-6 = n x - 1.602 x 10^-19

n = 2.559 x 10^14 electrons

Hence, the excess electron would be 2.559 x 10^14 electrons.

Mass of one electron = 9.1 x 10^-31 kg

Total mass increased will be equal to the total mass of excess electrons i.e.,

Mass increased = me x n = 9.1 x 10^-31 x 2.559 x 10^14 = 2.329 x 10^-16 kg.

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What is the refractive index when light travels from glass to air?

Answers

In the case of glass to air, the speed of light is the same in both materials, so the refractive index is 1.0.

The refractive index of a material is a measure of how much the speed of light is reduced as it passes through the material. When light travels from one medium to another, the refractive index is determined by the ratio of the speed of light in the two materials.

When light enters a material, the speed of light is reduced. This happens because the light interacts with the material and is absorbed and scattered.

This results in a decrease in the speed of light, and an increase in the refractive index. The refractive index is a measure of how much the speed of light is reduced as it passes through the material. The higher the refractive index, the more the speed of light is reduced.

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What patterns did you notice when comparing the interactions between the tape and van de Graaff generator to the tape and charged balloon?

Answers

The negatively charged van de Graff generator can make a flow of electrons through the tape and these both will repel each other. When the tape comes in contact with the balloon, the positive charges of balloon gets attracted and they stick together.

What is van de Graff generator?

Electrons are drawn from the earth by a Van de Graaff generator, transported via a belt, and then stored on the big sphere. These electrons are attracted to one another and try to distance themselves from one another by dispersing throughout the surface of the sphere.

Electrons can spread out widely on the earth, thus they will choose the shortest route possible to return to the ground. The electrons from the tape repel the electron from the tape, make the tape negatively charged.

This negatively charged tape when comes in contact with the balloon, it will polarize the balloon and its positive charges aligns with the tape's charge and gets stuck.

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A kilogram is a measure of an object's

O Gravity
O Weight
O length
O Mass

Answers

It’s a measure to an object’s mass.

Answer:(d) mass

Explanation: The kilogram is the standard mass unit that is used almost globally and is the SI unit of mass. The kilogram weighs 9.8 Newtons under normal conditions on the surface of the Earth, and Newton is the corresponding SI unit of force and weight.

Describe a method the student could use to investigate how the diameter of a

steel ball affects the terminal velocity.

In your answer, you should include

• a labelled diagram

• the measurements that the student should take

• how the student could use the measurements to find the terminal velocity.

Answers

In the experiment to investigate how the diameter of a steel ball affects the terminal velocity;

The student should take measurements of the time taken to cover equal distances by the steel balls of different diameters.The equation speed = distance/time is used to find the average velocity of the steel balls.The terminal velocity of each steel ball is obtained from the region of a graph of velocity against time where the slope is zero.

What is terminal velocity?

An object falling through a fluid at its greatest speed is said to have reached its terminal velocity. When the combined drag and buoyancy forces are equal to the force of gravity pulling the object downward, it is observed.

To investigate how the diameter of a steel ball affects the terminal velocity, a student should get steel balls of increasing diameter and record the time it takes for the balls to attain terminal velocity in a viscous fluid.

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If the aerial lift is short of the desired work height, it is permissible to ___ as long as you are tied off.

Answers

Aerial lifts are not permitted for any of the reasons listed below if they fall short of the required work height.

You are not allowed to stand on the middle safety rail, use a step as long as it is 6" or less, or use a 4' step ladder while you are tied off, regardless of how high the aerial lift is above the desired work height. Working from an aerial lift is not allowed while belting off to a nearby pole, building, or piece of machinery. Extensible boom platforms, aerial ladders, vertical towers, and other vehicle-mounted aerial devices are examples of aerial lifts that are used to elevate personnel to job sites above ground. Aerial equipment is defined as lifts whether or not they can rotate about a significantly vertical axis. It can be built of metal, wood, fiber glass reinforced plastic (FRP), or other materials. It can also be electrically or manually operated.

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The work required to accelerate an object initially at rest to a speed v0 is w. What is the additional work needed to increase its speed from v0 to 2v0?.

Answers

An item obtains mechanical energy when an external force applies positive work to it.

The object experiences negative work when the force and displacement are in the opposite directions; as a result, the item loses mechanical energy.

Does moving more quickly require more effort?

The power needed, which is defined as energy per unit of time, depends on the velocity.

More power is needed to move a certain distance quickly, thus you must provide the same quantity of energy over a shorter period of time.

Work is defined as the energy transferred while exerting force to move an item across a distance. It is the result of distance and force.

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You can tell the direction of propagation of the initiation by the direction of Group of answer choices a. the wind b. branching c. cloud motion d. tall towers

Answers

You can tell the direction of propagation of the initiation by the direction of cloud motion. Correct answer: letter C.

Cloud motion is the speed and direction of the clouds in the sky, which can indicate the direction of the wind and the propagation of the initiation.

This is especially important for forecasting storms and other weather events, as the direction of wind can help to predict the direction of the storm's movement. Additionally, it can also be used to help predict the intensity of the storm, as the speed of the wind can help to determine the strength of the storm.

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Give an example from your own life about a time that you have either used your Awareness, Social or Solution Power. Be sure to tell specifically which Power you used, how you were able to use it and the outcome of your actions using at least three full sentences.

Answers

Let's say I a person is working in a team, and I  am aware of the different perspectives and work styles of my team members, I can anticipate and adapt to their needs, in turn, building a more productive and cohesive team.

I could also be aware of the strengths and weaknesses of the team members and assign tasks accordingly, which would lead to better results and a more efficient use of time.

In this scenario, I have used my  Awareness power to understand the team dynamics and utilize that information to improve the performance of the team as a whole.

What is another way to use  Awareness power?

Another example, an individual while working on a problem, they might be aware of the problem and its importance, but that is not enough, they are also able to understand the underlying causes of the problem and the factors that contributed to it.

With that knowledge, they can then come up with a solution that addresses the root causes, rather than just the symptoms. The person used their awareness power to understand the problem in depth, which enabled them to create a more effective solution.

In all, awareness power is being used to understand the situation at hand and come up with better solutions.

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A balloon has a buoyant force of . The balloon and string have a weight of . What is the net force on the balloon

Answers

The net force on the balloon will be 0.0807 pounds..

The apparent weight of an object at its lowest point would be equal to its normal force. The formula to employ for buoyant force was F = Vg, where seems to be the fluid density, not just the object density. V stands for the fluid displacement's volume.

Gravity pulls liquid helium downward with such a force about 0.0114 pounds for one cubic left foot helium-filled balloon, whereas the air drives up with such an equal must weight of the oxygen the helium evacuated or 0.0807 pounds. The upward and downward forces differ by 0.069 pounds.

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The deflection produced by the Coriolis force is caused by O the Earth's rotation on its axis. O differing pressure gradients. O air temperature differences. O the uneven heating of Earth's surface. O friction caused by gravitational force.

Answers

The Planet on its axis often contributes to the deflection created by the Coriolis force.

Coriolis force: what is it?

Moving objects in a reference point that rotates relative to an inertial frame are affected by an imagined or inertial force known as the Coriolis force. the force acting left of a object . an object in a frame of reference rotating in a clockwise direction.

Rotation: Rotation, often known as spin, is the cyclical motion of an object about a fundamental axis.

A two-dimensional rotating object can only have one possible central axis.

Such things have an axis that may rotate either counterclockwise or clockwise.

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____________ waves are used to send signals because they can travel over very long distances and pass trough buildings

Answers

Answer:

sound waves are used to send signals because they...

What pattern would you say matches creating a negative ion?
What pattern would you say matches creating a positive ion?

Answers

The pattern that would match creating a negative ion is that they can gain one electron and become 1-.

For example Group 16 elements gain two electrons to become 2-, and Group 15 elements gain three electrons to become 3-.

The pattern that would match creating a positive ion is when they give up one electron and become +1.

In the case of Group 2 elements give up two electrons to become 2+, and Group 3 give up three electrons to become 3+

What is an ion?

An ion is described as an atom or molecule with a net electrical charge.

We know that some elements can form ions with two or more different charges. Iron (Fe), for example, can form both an iron ion with 2+ (Fe²⁺) and an iron ion with 3+ (Fe³⁺).

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Consider the system shown in the figure. The rope and pulley have negligible mass, and the pulley is frictionless. The coefficient of kinetic friction between the 8.00-kg block and the tabletop is m_k=.25 . The blocks are released from rest.Use energy methods to calculate the speed of the 6.00-kg block after it has descended 1.50 m. How do i calculate work on the 8kg block.

Answers

Plugging in the given values and solving for the final velocity of the 6kg block will give you the speed of the 6.00-kg block after it has descended 1.50 m. In this case, the normal force is the weight of the 8kg block, and the displacement is the distance that the 8kg block moves.

Energy Method Block Speed

To calculate the speed of the 6.00-kg block after it has descended 1.50 m, you can use the conservation of mechanical energy. The initial mechanical energy of the system is the potential energy of the 6.00-kg block (mgh) and the potential energy of the 8.00-kg block (mgh). As the blocks move, some of this energy is converted into kinetic energy, and some is lost to friction. The equation for the conservation of mechanical energy is:

E_initial = E_final + W_friction

Where E_initial is the initial mechanical energy of the system, E_final is the final mechanical energy of the system, and W_friction is the work done by friction.

The final mechanical energy of the system is the kinetic energy of the 6.00-kg block (1/2 mv²) and the potential energy of the 8.00-kg block (mgh).

To calculate the work done by friction, you can use the equation:

W_friction = force x distance x cos(theta)

Where force is the force of friction, distance is the distance over which the force of friction acts, and theta is the angle between the force of friction and the displacement. The force of friction is the coefficient of kinetic friction times the normal force.

In this case, the normal force is the weight of the 8kg block, and the displacement is the distance that the 8kg block moves.

W_friction = m_kF_nd

Where m_k = 0.25 is the coefficient of kinetic friction, F_n = 8*9.8 N is the normal force, and d = 1.5m is the distance that the 8kg block moves.

Plugging in the given values and solving for the final velocity of the 6kg block will give you the speed of the 6.00-kg block after it has descended 1.50 m.

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If the fundamental frequency of a note is 200 Hz, what is the frequency of the second harmonic? The third harmonic?

Answers

The frequency of the second harmonic of a note with a fundamental frequency of 200 Hz is 400 Hz, and the frequency of the third harmonic is 600 Hz.

To calculate the harmonics of a note, you will need to know the fundamental frequency of the note. The frequency of the second harmonic is twice the fundamental frequency, and the frequency of the third harmonic is three times the fundamental frequency. For example, if the fundamental frequency is 200 Hz, then the frequency of the second harmonic is 400 Hz and the frequency of the third harmonic is 600 Hz.

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How much power does a crane develop, doing 72,933 J of work in 3 min?

Answers

According to the given statement The crane would develop a power of 405.18 Watts.

How is power calculated?

The term "power" refers to the rate at which the task is accomplished. It may also be defined as the rate or energy exchange. The SI unit of power is the watt (W), that is derived on joules per second (J/s). A quantity called a backhand (horsepower), which is roughly comparable to 745.7 watts, is occasionally used to characterize the power of motor vehicles and other equipment.

The formula for calculating power is:

Power = Workdone / Time

The SI unit for Power is Watt.

The crane completes 72933 Joules of work for the specified task in 3 minutes and 180 seconds.

Hence,

Power = 72933 J / 180  seconds

Power = 405.18 Watt.

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A 3.00-newton force causes a spring to stretch 60.0 centimeters. Calculate the spring constant of this spring.

Answers

A force of 3.00 newtons causes the spring to stretch 60.0 cm. Then the spring constant is 5 N/m.

A spring will increase in length if there is a force on the spring. The increase in length of a spring can be different from one spring to another. The difference in the addition of the length of a spring occurs because of the characteristics of the spring between one spring and another which is expressed through the spring constant (k) with units of N/m. The spring force formula is:

                                  F = k.x

Where:

F = force exerted on a spring (N)

k = spring constant (N/m)

x = Addition of spring length due to force (m)

In this question given F = 3.00 N and x = 60.0 cm = 0.6 m

So:

F = k.x

k = F/x

k = 3/0.6

k = 5 N/m

So that the spring constant is 5 N/m.

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(a) if two objects collide and one is initially at rest, is it possible for both to be at rest after the collision? yes no explain. (b) if two objects collide and one is initially at rest, is it possible for only one to be at rest after the collision? yes no

Answers

Momentum and energy are the two fundamental quantities that are always conserved in collisions, according to classical mechanics. Since we are concerned in the velocities of the objects but kinetic energy could not be conserved after collisions, we will now disregard energy. Energy is a formless substance.

In plain terms, what is kinetic energy?

Kinetic energy seems to be the power a thing has as a result of motion. Applying a force is necessary if we wish to accelerate an object. Once the job is finished, energy is transferred to the item, which then moves at a new, constant speed.

Why is it termed kinetic?

The word kinetic is derived from the Greek kintikos, which means "of motion" and is related to the word kinein, which means "to move." kinetic is indeed a relatively new English word compared to several other words with Greek origins; the first documentation of its use originates in the 19th century.

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