in hooke's law, what does the x represent ?

Answers

Answer 1

x is the displacement.


Answer 2

Answer:

In hooks law,The x represents the extension of elastic material.


Related Questions

The farmer driving this tractor is spreading pesticides on the crops. What type of pollution is this an example of?
A. point source
B. non-point source
C. environmental source
D. non-environmental source

Answers

nonenvironmental source

Answer:

Option-(D): The farmer driving this tractor is spreading pesticides on the crops is considered as the non-environmental source of pollution.

Explanation:

Pollution is the imbalance in the over all elements of the environment(i.e biosphere and lithosphere etc). While, some of the pollutants are non-environmental that are not related to any sort of the environment factors. But, they are added intentionally due to the fact that people take the planet and its resources all for granted and these elements then disturbs the whole balance of the environment.

Blank have a definite shape and do not easily take the shape of their container

Answers

solids do no take to the shape of their containers, unlike liquids and gasses which do

Explanation:

An object whose particles are held by strong intermolecular forces of attraction is known as a solid substance.

In solids, particles have least kinetic energy and they can only vibrate at their position.

Therefore, solids have a definite shape and volume.

Hence, when we place a solid object in a container then it is unable to take the shape of container because its molecules are held strongly with each other.

Thus, they bond between its molecules cannot be broken down easily.

conductive deafness occurs Because of damage to what part of the body

Answers

Conductive deafness refers to a malfunction of the middle ear. Those 3 ossicles (malleus, incus, stapes) are responsible for converting the sound wave and conducting it to the inner ear.

Kamir and Alexis are studying the properties of water. They conducted a variety of experiments to determine its physical and chemical properties. Of the tests the students conducted, which one illustrates a chemical property of water?

A) Salt dissolves in water.
B) Oil and water do not mix.
C) Pencil shavings float on water and do not dissolve.
D) Neutral water react s with carbon dioxide to form an acid solution.

Answers

ITS D hope this helps

How is electron movement related to the bonding in sodium chloride? A) The atomic orbitals overlap and share electrons causing an ionic bond to form. B) Electrostatic sharing of electrons between atoms allows covalent bond formation. C) Electrons exchange creating ions to form an ionic bond by electrostatic attraction. D) Orbital overlap occurs between the atoms to exchange electrons to form the covalent bond.

Answers

Answer: Option (C) is the correct answer.

Explanation:

Sodium has atomic number 11 and its electronic distribution is 2, 8, 1. Whereas chlorine has atomic number 17 and its electronic configuration is 2, 8, 7.

Therefore, we can see that sodium has one extra electron and chlorine has deficiency of one electron.

So, in order to complete their octet sodium will give its one valence electron to the chlorine atom. Hence, there is exchange of electrons and thus it will result in the formation of ionic bond.

Thus, we can conclude that in sodium chloride electron movement is related to the bonding as electrons exchange creating ions to form an ionic bond by electrostatic attraction.

Answer:

Its C

Explanation: just had it on usatestprep

!!PLEASE ANSWER ASAP!!

when a car stops, the brakes heat up because of friction. what is this an example of?

a. elastic motion

b. periodic motion

c. energy being destroyed

d. one form of energy being converted to another

Answers

A. elastic motion because that's the answer


The given statement is an example of one form of energy is  being converted to another

Answer: Option D

Explanation:

A car is is stopped due to the application of brakes to bring it back to rest. This is an example of kinetic energy as work is done to stop the car. When brakes are applied, heat is produced due to the friction between the wheels and the brakeshoes which is an example of heat or thermal energy. Hence kinetic energy is transformed into thermal energy in this application.

Vinegar (C2H4O2) and baking soda (NaHCO3) react to form sodium acetate, water, and carbon dioxide. C2H4O2 + NaHCO3 ? How many total oxygen atoms are expected in these products? A. 2 B. 3 C. 4 D. 5

Answers

The total oxygen atoms that are exprected in the vinegar and baking soda reaction is three oxygen atoms.


Answer: B. 3




why;live

Answer: D. 5

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced chemical equation will be:

[tex]C_2H_4O_2+NaHCO_3\rightarrow CH_3COONa+H_2O+CO_2[/tex]

Thus there are 2 atoms of oxygen in vinegar and 3 atoms of oxygen in baking soda. Which means there are 5 oxygen atoms on reactant side.

Thus the products must also have 5 oxygen atoms.

Choose the correct statement about the periodic table's organization from the choices below.

Answers

we need to be able to the see the choices to help you answer the question:)

When a concrete road is heated by energy from the Sun, the Concrete will most likely

Answers

It will most likely expand when hot and contract when cold.

When a concrete road is heated by energy from the Sun, the Concrete will most likely expand.  If no expansion joints have been provided during construction, then it will eventually crack.

Which type of atom is expected in the reactants of this chemical reaction? ? Fe2O3

Answers

There are two atoms of two types:-

1st) Iron (Fe) - METAL

2nd) Oxygen (O)- NON -METAL

Fe + O2 -----> Fe2O3

The given question is incomplete, here is a complete question.

Which type of atom is expected in the reactants of this chemical reaction?

[tex]4Fe+3O_2\rightarrow 2Fe_2O_3[/tex]

A. iron (Fe)

B. gold (Au)

C. nitrogen (N)

D. chlorine (Cl)

Answer : The type of atoms expected in the reactant of the chemical reaction is, iron (Fe)

Explanation :

Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.

The species present on the left side of the right arrow is the reactant and the species present on the right side of the right arrow is the product.

The balanced chemical reaction is:

[tex]4Fe+3O_2\rightarrow 2Fe_2O_3[/tex]

The given molecule is made up of two elements that are iron and oxygen.

In the given equation, iron and oxygen are reactants and [tex]Fe_2O_3[/tex] is the product.

Hence, the type of atoms expected in the reactant of the chemical reaction is, iron (Fe)

The idea that mental states are dispositions to behave in particular ways in certain Circumstances is known as

Answers

Answer;

Logical behaviorism

Explanation;

Behaviorism is a learning theory that only focuses on objectively observable behaviors and discounts any independent activities of the mind. Behavior theorists define learning as nothing more than the acquisition of new behavior based on environmental conditions.

Logical behaviorism is at odds with our commonsense intuition that mental states cause behavior.

A proton has a mass of 1.672 X 10-27 kg. What is its weight?

Answers

Protons are usually regarded by their mass, as mass is not specific to any gravitational acceleration.  However, if you wished to find the weight of a proton on Earth, it would be:

Force (weight) = mass of proton * acceleration due to Earth's gravity

F = ma

F = (1.62 x 10^-27)(-9.8)

F = 1.5876 * 10^-26N


Final answer:

The weight of a proton can be calculated using the formula W = mg, where W is weight, m is mass, and g is the acceleration due to gravity. Using the given mass of the proton and the acceleration due to gravity on Earth, we can calculate its weight to be approximately 1.64 x 10^-26 N.

Explanation:

The weight of an object is the force exerted on it due to gravity. The formula to calculate weight is W = mg, where W is the weight, m is the mass of the object, and g is the acceleration due to gravity. In this case, the mass of the proton is 1.672 x 10-27 kg.

To calculate the weight of the proton, we need to know the acceleration due to gravity. On Earth, the acceleration due to gravity is approximately 9.8 m/s2. Using this value, we can calculate:

W = (1.672 x 10-27 kg) x (9.8 m/s2) = 1.64 x 10-26 N

Therefore, the weight of the proton is approximately 1.64 x 10-26 newtons.

A 55.0-kg skydiver free falls for a period of time before opening his parachute. What is his kinetic energy when he reaches a velocity of 16.0 meters/second?

7,040 J
440 J
539 J
cannot be determined without knowing his height above the ground

Answers

Given:

Mass of the skydiver:55 Kg

Velocity of the skydiver (v): 16m/s

Kinetic energy= 1/2mv^2

Kinetic energy= 1/2(55x16x16)

Kinetic energy= 7040J

Final answer:

The kinetic energy of a 55.0-kg skydiver reaching a velocity of 16.0 m/s is calculated using the equation KE = 1/2 mv², resulting in an energy of 7,040 Joules.

Explanation:

The question is asking to calculate the kinetic energy of a 55.0-kg skydiver who reaches a velocity of 16.0 m/s. Kinetic energy (KE) can be found using the equation KE = 1/2 mv², where m is mass and v is velocity.

Let's insert the values into the equation:

KE = 1/2 × 55.0 kg × (16.0 m/s)²

KE = 1/2 × 55.0 kg × 256 m²/s²

KE = 27.5 kg × 256 m²/s²

KE = 7040 Joules

Therefore, the kinetic energy of the skydiver when he reaches a velocity of 16.0 m/s is 7,040 J.

scientist who discovered that arms contain an electric charge

Answers

If you meant atoms, it would be J.J. Thompson.

Across a resistor, the potential:

increases
decreases
remains constant

Answers

decreases as a resistor will slow the current

Final answer:

Across a resistor in a circuit, the potential decreases due to the resistance. This potential drop is determined by the current in the circuit and the resistance value according to Ohm's Law (V = IR).

Explanation:

Across a resistor, the potential decreases. This is because the resistor causes a potential drop, which is the product of the current flowing through the resistor and the resistance of the resistor (Ohm's Law, V = IR). If we consider a simple electrical circuit where current flows from a battery through a resistor, as the current "passes through" the battery, the potential of the electrical energy increases by a value V, representing the voltage of the battery.

However, as the current then "passes through" the resistor, the potential energy of the charges is converted into other forms of energy like heat, leading to a decrease in potential by the value given by the product of the current (I) and the resistance (R) of the resistor.

The wires connecting the components in the circuit, assuming they have negligible resistance, do not cause a significant change in voltage. Therefore, as current travels through these wires, the voltage remains constant.

What is the energy equivalent of an object with a mass of 1.05 g? 3.15 × 105 J 3.15 × 108 J 9.45 × 1013 J 9.45 × 1016 J

Answers

9.45 × 1013 J

einstein's mass energy equivalence equation

The energy equivalent of mass is [tex]9.45[/tex]×[tex]10^{13} J[/tex]. It is related to the mass- energy equivalent.

What is mass energy equivalent ?

It is relation between mass and energy in a stationary frame. If a body is of mass (m) is moving with the speed of light (c), the formula will be,

[tex]E = m.c^{2}[/tex]

In the given question mass (m)= [tex]1.05gm = 1.05[/tex]×[tex]10^{-3} Kg[/tex]

                                                      (c) = [tex]3[/tex]×[tex]10^{8} m/s[/tex]

On putting in the above formula,

       [tex]E =1.05[/tex]×[tex]10^{-3}[/tex]×[tex](3*10^{8} )^{2}[/tex]

            [tex]=1.05[/tex]×[tex]10^{-3}[/tex]×[tex]9[/tex]×[tex]10^{16}[/tex]

             [tex]= 9.45[/tex]×[tex]10^{13} J[/tex]

The energy equivalent is [tex]9.45[/tex]×[tex]10^{13} J[/tex]

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How will day and night change if earths rotational speed is decreased by 25%? Please answer good. Will mark brainliest.

Answers

If Earth's rotational speed decreased by 25%, then it would take 25% longer to rotate once.

-- A full cycle of day and night would take (1.25) x (24 hours) = 30 hours.

-- The average length of daylight/darkness over a whole year would be 15 hours each.

-- Daytime-high temperatures would be hotter everywhere, because the sun would be up longer.  Night-time-low temperatures would be colder, because the sun would stay down longer.

-- Changes in the weather would be more drastic, and winds would generally be stronger, because of the greater contrast between warm areas and cold areas.      BUT ...

-- High-pressure areas, low-pressure areas, hurricanes, typhoons, tornadoes, water going down the drain, dust devils, and Foucault pendulums, would all spin slower, because of the decrease in the Coriolis force.  

-- There would be only 292 days in a year.

-- Every star in the sky would rise almost 5 minutes later each night than it rose the night before.

-- On the average, the moon would rise every day 61 minutes later than it rose the day before.  Once the moon rose, it would be in the sky for about 16 hours before it crossed the sky and set on the other side.

-- From one Full Moon to the next one would be only about 23.6 days.

-- Each crescent and gibbous moon phase would last only about 5.9 days, instead of about a week as it does now.

-- When you went to bed, you could stay there and veg out for 10 hours.  But don't get excited yet ... Once you got out of bed, you couldn't go back for another 20 hours !

-- Instead of waking up hungry and crying to be fed 3 times during the night, newborn babies would do it 4 times every night.  New mothers wouldn't like it at all.

-- The standard work day and the standard school day would probably each grow to 10 hours instead of 8 hours.  Bummer.

An object on the surface of the earth weighs 90 lb. at three earth radi above the surface it will weigh

Answers

Answer:

10lb

Explanation:

Which of the following is a chemical change?
A. Ice melting
B. Ice being carved
C. Water boiling
D. Water breaking down into hydrogen and oxygen

Answers

D. Water breaking down into hydrogen and oxygen

How did scientists determine the age of the ocean floor

Answers

the layers of rocks, the ancient treasures that are at the bottom of the sea, how old the coral is. But I don't think they determined how old it is, how would the dinosaurs that lived in water swim or any drink water. I don't know if this helps but hopefully it does. Also scientist have made advanced tech that could help with the age determination of the ocean floor.


 Scientists can determine the age of the seafloor thanks to the changing magnetic field of our planet. Every once in a while the currents in the liquid core, which create the Earth's magnetic field, reverse themselves: This is called a geomagnetic reversal. 

hope this helps!

In the absence of air resistance, the path of a projectile is an

Answers

The velocity of a bullet does not change throughout its course when there is no air resistance.

What is projectile?

An object that is propelled by the application of an external force and then moves freely while being affected by gravity and air resistance is referred to as a projectile. Projectiles are generally used in sports and warfare, despite the fact that any item traveling through space is a projectile.

The forces that oppose an object's relative motion as it travels through the air are known as air resistance. These drag forces counteract the speed of the approaching flow, slowing the object down.

The velocity of a bullet does not change throughout its course when there is no air resistance.

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Why is Pluto now called a dwarf planet

Answers

Before Pluto was discovered, it was predicted. Astronomers had observed that massive objects can affect the orbits of its neighbors, and, after seeing deviations in the orbits of Uranus and Neptune, assumed something substantial existed beyond their orbits.
When Pluto was spotted, it was thought to be the predicted object and was identified as a ninth planet.
A few decades later, astronomers started discovering more and more objects around other stars and didn’t know whether to call them planets or not. There appeared to be a need to define what a planet means, and that led to what some people consider Pluto’s demotion to a dwarf planet.
The International Astronomical Union decided that full-sized planets must orbit the sun, have a round shape, and have cleared their orbits of other objects. Pluto fulfills the first two criteria, but not the third.
It still goes around the sun, it’s round enough, it’s got moons, and behaves like a planet, but the idea is that Pluto did not form the same way as the rest of the planets. Pluto’s orbit is both eccentric and inclined more than the rest of the planets by about 17 degrees. That’s suggests something is different about this object.
This debate about whether to call it a planet or not is silly, because it doesn’t matter to Pluto what you call it. It is an interesting object, goes around the sun, and shows geology and an atmosphere.
There’s a tendency to define objects based on what they are now, but nothing is constant in the universe. There are some issues with the nomenclature, and a definition today may not apply to the same object tomorrow.

Pluto is now classified as a dwarf planet because of a change in the definition of a planet adopted by the International Astronomical Union (IAU) in 2006. It must orbit the Sun, It must be spherical in shape or have a nearly round shape, and It must have cleared its orbit of other debris.

The IAU's new definition of a planet states that for a celestial body to be considered a planet, it must meet three criteria:

1) It must orbit the Sun.

2) It must be spherical in shape or have a nearly round shape.

3) It must have removed any additional trash from its orbit.

While Pluto meets the first two criteria, it fails to satisfy the third criterion. The reclassification was a result of advancements in our understanding of celestial objects beyond Pluto and the desire to have a more precise and consistent definition of what constitutes a planet.

Therefore, Pluto is now classified as a dwarf planet because of a change in the definition of a planet adopted by the International Astronomical Union (IAU) in 2006.

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the fastest airplane is the lockheed sr 71 blackbird a high altitude spy plane first built in 1964. if an sr-71 is clocked traveling 15.0 km west in 15.3 s, what is its average velocity in kilometers per hours

Answers

For the motion of the plane it is given to us that it travel 15.0 km in 15.3 s

So here we can use the formula of average velocity to find it

formula is given as ratio of total displacement and total time

[tex]v = \frac{displacement}{time}[/tex]

here it is given that

[tex]displacement = 15.0 km[/tex]

time = 15.3 s

we need to convert the time into hour as the speed is required in km/h

so we know that

[tex]1 h = 3600 s[/tex]

[tex]t = 15.3 s * \frac{1h}{3600 s}[/tex]

[tex]t = 4.25 * 10^{-3} h[/tex]

now by the above formula

[tex]v = \frac{15.0}{4.25 * 10^{-3}}[/tex]

[tex]v = 3529.4 km/h[/tex]

so the velocity of the plane would be 3529.4 km/h

Which of the following are true about centripetal force? Check all that apply. A. Without centripetal force, an object cannot accelerate. B. Friction can be a centripetal force, such as when it keeps a car on the road going around a curve. C. Gravity can be a centripetal force, such as when it pulls a satellite in its orbit. D. It's also called an outward force.

Answers

Centripital force is a center seeking force, meaning it is always directed to the center point of rotation.

A is vague, but true. Assuming there is no friction and an object is already in centripetal motion; without centripital force, there will be no acceleration. The centripital force is responsible for an acceleration which doesn't affect the magnitude of the object's velocity, but rather the change in direction of the velocity.

B is true. Friction keeps the car from sliding due to the tendency for the car to want to maintain a straight path. Thus it is responsible for allowing the car to execute a turn by causing a center seeking force to the center of the point of the curve.

C is true. Newton's law of gravitation states that there is an attraction force between two masses. If a mass is undergoing an orbit around another mass, the gravitation force of attraction is responsible for maintaining the object's orbit.

D. This is false, as stated above and exemplified, centripital force is a center seeking force.

B. Friction can be a centripetal force, such as when it keeps a car on the road going around a curve.

C. Gravity can be a centripetal force, such as when it pulls a satellite in its orbit.

Explanation:

The centripetal force is any force that keeps an object moving in circular motion, "pulling" the object towards the centre of the circular trajectory.

Several forces can act as centripetal force. Examples are:

- friction: when a car is going around the curve, is moving by circular motion. The force that keeps the car in circular motion is, in fact, the friction between the tires and the road.

- Gravity: when a satellite moves around the Earth, it is moving by circular motion. The force that keeps the satellite in circular motion is the gravitational attraction between the Earth and the satellite, that pushes the satellite towards the Earth.

The other two options are not correct because:

A) An object can also accelerate if there is no centripetal force (for example, a car speeding up on a straight road is accelerating, but there is no centripetal force since there is no circular motion

D) Centripetal force is not an outward force, since it pushes the object inwards (towards the centre of the trajectory).

Distinguish between the following natural science and social science

Answers

Anthropology is a social science that deals with the history of man. ... This is the main difference between social science and natural science. Sciences such as logic, mathematics, and statistics are called as formal sciences and they too are different from natural sciences.

Natural sciences are studies of the natural world.This generally involves life forms, but also geology and weather. the occur naturally and are physically observable . it is quantitative study ( referring to quantities and measurable characteristics).

Social Studies are the study of interactions between life forms , most commonly focusing on the dynamic interface between people , their societies, or their cultures. These are not observable as physical objects but are instead a study of behaviors and action. It is a qualitative study, as in the examination of qualities.

can someone solve under section two, numbers one and two?

Answers

1. Height of cube =9cm

mass of cube= 3645 g

volume= length ×breadth× height

as cubic volume so length breadth and heights are same so

volume =height ×height ×height

V =9cm×9cm×9cm= 729cm³

density =mass/ volume

density =3645g/729cm³

density= 5g/cm³

2.  AS DENSITY = mass/volume

volume =mass/ desity

volume= 13.558g/(0.089g/l)

volume= 0.152L³

Density = mass/volume

#1). The mass is given. And knowing the length of a cube's side, you can calculate its volume.

Volume = mass/density

#2). The mass and density are both given.

Where are the magnetic fields stronger near a bar magnet?

A) Top
B) Center
C) Ends
D) Bottom

Answers

your answer is c) Ends

As can be visualized with the magnetic field lines, the magnetic field is strongest inside the magnetic material. The strongest external magnetic fields are near the poles. A magnetic north pole will attract the south pole of another magnet, and repel a north pole.


Answer: The correct answer is "Ends".

Explanation:

Bar magnet is a permanent magnet.

Bar Magnet has two poles: North pole and South pole.

Same poles repel each other and the opposite poles attract each other.

The magnetic field lines originates from the north pole and ends at the south pole.

The magnetic filed lines are surrounding of the magnet in which the magnetic force can be experienced. The magnetic fields are stronger near the poles of the magnet. As the distances decreases from the poles, the magnetic fields lines get weaker.

Therefore, the correct option is (C).

The majority of the elements on the periodic table are _______. A. gases B. nonmetals C. metals D. liquids

Answers

Option (C) is correct that the majority of the elements on the periodic table are metals.

#$# THANK YOU #$#

Answer:

metals

Explanation:

just had answer

the change in position of an object is

Answers

The change in position of an object is called Velocity which tells you that some kind of motion took place but does not let you know the speed in which the object changed position. :)

The change in an object's position is the definition for displacement. A change in position over time is motion.

Give 3 examples, from the lab, where potential energy was converted to kinetic energy.

Answers

1. The red ball was potential energy until it was hit by the pendulum converting into kinetic energy.

2. The 5 pounds was a potential energy, until the rope was cut by the scissors, this made the 5 pounds become kinetic energy.

3. The bucket was a potential energy, till the books landed in it causing it to fall, this became kinetic energy

Final answer:

Examples of potential energy being converted into kinetic energy include a roller coaster ride simulation, the operation of a combustion engine, and an activity in the Snap Lab.

Explanation:

Potential energy is converted into kinetic energy in various instances during lab activities. Here are three specific examples:

Roller Coaster Simulation: During a roller coaster ride simulation, potential energy (possessed by the roller coaster at the summit of a hill) was converted into kinetic energy as the roller coaster descended the hill (Figure 6.11).Combustion Engine: In a demonstration of how combustion engines work, chemical energy (a type of potential energy stored in gasoline) is converted into mechanical energy (a type of kinetic energy) during combustion inside engine cylinders.Snap Lab: An activity known as Snap Lab, involved calculating the potential energy of an object, predicting its speed when potential energy was entirely converted into kinetic energy, and checking predictions.

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