What is concave mirror Class 7?

The velocity for mass of 60 kg is 99.6 m/s and for mass of 90 kg is 122 m/s.

The displacement that an object or particle experiences concerning respect to time are expressed vectorially as velocity. The meter per second (m/s) is the accepted unit of velocity magnitude (also known as speed). Alternately, the magnitude of velocity can be expressed in centimeters per second (cm/s).

The pace at which a body's distance changes about time is referred to as its velocity. Its SI equivalent is m/s.

Given:-

Mass (m1) = 60kg

Mass (m2) = 90kg

Assumption:

ρ(air) = 1.21 kg/m^3

Pike position so assume A = 0.14 m^2

Pike position so assume C = 0.7

The terminal velocity [tex]V_T= \sqrt{\frac{2mg}{ρ(air)*C*A} }[/tex]

For 60kg,

[tex]V_T= \sqrt{\frac{2*60*9.80}{1.12*0.7*0.14} }[/tex]

[tex]V_T=99.6m/s[/tex]

For 90kg,

[tex]V_T= \sqrt{\frac{2*90*9.80}{1.12*0.7*0.14} }[/tex]

[tex]V_T=122m/s[/tex]

To know more about velocity visit:

https://brainly.com/question/500702

#SPJ4

The weather is affected by:

The amounts or characteristics of the weather that are frequently measured are known as its elements.

The six major elements of the weather are temperature, air pressure, wind, humidity, precipitation, and cloudiness. The amount of water vapour in the air at any one time is called the humidity. Humidity is influenced by the target system's temperature and pressure.

hence, the correct options are: Humidity, Wind speed and direction, Temperature, Air Pressure.

Learn more about weather here:

https://brainly.com/question/14426457

#SPJ1

The magnitude of the net horizontal force is 74 N and the direction of the net horizontal force will be on the right side.

The force by the right side = 182 N

The force by the left side = 108 N

The magnitude of the net horizontal force can be found using the formula,

           F = F₁ - F₂

where F is the net force

           F₁ is the force on the right side

           F₂ is the force on the left side

Let us substitute the known values in the above equation, we get

         F = 182 - 108

            = 74 N

The force by the right side is greater than the force by the left side, thus, the direction of the net horizontal force will be on the right side.

Learn more about the horizontal force in

https://brainly.com/question/2037071

#SPJ4

The density function of a 2-m rod is 3/ (5 x) grams per cubic centimeter at distance x, measured in meters, from the left-hand endpoint. The total mass of the rod is 28.5 gram

The formula of mass as a function of density is:

m = ρ . V

Where:

ρ = density

V = volume

m = mass

In the given problem, since the density is not constant but a function of distance x, then:

dm = ρ(x) . A dx

Where:

ρ(x) = 3/(5 + x)

A = 1/4 πd²   ( d = diameter of rod's cross section)

A = 1/4 (3.14) (6)² = 28.26 cm²

Hence,

dm = 28.26 × 3/(5 + x) dx

dm = 84.78 / (5 + x) dx

Take the integral:

∫dm = ∫ 84.78 / (5 + x) dx

m = 84.78ln (5+x) + C

Evaluate the integral from 0 - 2 meters. Note that in the density function,  x is measured in meters while the unit of density function is already in gram per cubic centimeters. Hence, no need to convert it to cm.

m = 84.78 [ln(5+2) - ln(5+0)]

   = 84.78 [ln(7) - ln(5)]

   = 28.5 gram

There was a typo in your question, most probably your question was:

A two meter long rod of uniform diameter 6 cm has density 3/ (5 + x) grams per cubic centimeter at distance x, measured in meters, from the left-hand endpoint. Find the total mass of the rod

Learn more about density here:

https://brainly.com/question/21805590

#SPJ4

In projectiles, the horizontal and vertical motions are independent, meaning they do not affect each other.

The figure compares a free-falling shell (in blue) with a shell launched horizontally in projectile motion (in red). You can see that the free-falling cannonball falls at the same speed as the projectile's moving cannonball. Keep in mind that if a cannon launches a ball with any vertical component to velocity, the vertical displacements will not be perfectly aligned.

Projectile motion is the motion of objects that are thrown (projected) into the air. After the initial triggering force, the object experiences only gravity. The object is called the projectile and its path is called air resistance. When an object moves through the air, it experiences a frictional force that slows its motion, which is called drag. Drag significantly changes the air resistance of motion but is ignored in introductory spectacles due to computational difficulties.

Learn more about projectiles motion at https://brainly.com/question/24216590

#SPJ4

The force being applied to the rope is 43.78 Newtons.

To find the force being applied to the rope, you can use the formula:

F = ma

where,

F is the force, m is the mass of the sled, and a is the acceleration of the sled. Since the sled is moving at a constant velocity, the acceleration is 0.

The force being applied to the sled by the rope can be broken down into two components:

The horizontal component is the force being applied to the sled in the direction it is moving, and the vertical component is the force being applied to the sled in the direction perpendicular to the direction it is moving.

Apply trigonometry to find the horizontal and vertical components of the force being applied to the sled. The horizontal component is the force being applied to the sled in the direction it is moving, and the vertical component is the force being applied to the sled in the direction perpendicular to the direction it is moving.

So, the horizontal component of the force being applied to the sled is 85 * cos(25) = 72.67 Newtons. The vertical component of the force being applied to the sled is 85 * sin(25) = 42.78 Newtons.

Since the friction of the snow on the sled provides a force of 85 Newtons in the opposite direction of the direction the sled is moving, the total horizontal force being applied to the sled is 72.67 - 85 = -12.33 Newtons. This means that the force being applied to the rope in the direction it is being pulled is 12.33 Newtons.

The total vertical force being applied to the sled is 42.78 - 0 = 42.78 Newtons. This means that the force being applied to the rope in the direction perpendicular to the direction it is being pulled is 42.78 Newtons.

So, the total force being applied to the rope is the square root of the sum of the squares of the horizontal and vertical components of the force. This is equal to the square root of (12.33^2 + 42.78^2) = 43.78 Newtons.

Therefore, the correct answer is as given above

learn more about force: https://brainly.com/question/12970081

#SPJ1

Over time, stored kerosene does deteriorate. Kerosene deterioration is mostly brought on by condensation.

When kerosene absorbs water, it transforms into condensation, which promotes the growth of germs and mould. The development of bacteria and mould causes the kerosene to contain sludge-like materials. When kept in its original packaging or a designated container, kerosene has a shelf life of up to five years. Kerosene absorbs water from condensation as it ages. Mold and bacteria will turn the fuel into sludge and break it down. Kerosene's lifespan can be increased by yearly adding a fuel stabiliser. Kerosene storage can be challenging. It can degrade, lose its incendiary power, and sustain dangerous moulds and bacteria after roughly three months.

To learn more about condensation click here https://brainly.com/question/20378318

#SPJ4

Jupiter and Saturn are mostly made up of hydrogen and helium. Uranus and Neptune both have hydrogen, but they also have more "ices" of carbon, oxygen, and nitrogen.

Jupiter and Saturn's atmospheres are almost exclusively comprised of hydrogen and helium, while there is some evidence that they include hydrogen compounds. Uranus and Neptune are mostly composed of hydrogen compounds, with minor amounts of hydrogen, helium, metal, and rock.

Uranus has a duller look than Neptune and is typically cloudless. Neptune's atmosphere features darker bands than Uranus', as well as streaks and wisps of white clouds and a big "black patch."

For further information about composition of Uranus and Neptune, refer to the link:

https://brainly.com/question/14667883

#SPJ4

A radio wave is traveling in the negative y-direction while the magnetic field B is in the positive x-direction. Therefore, the electric field E is in the negative z-direction or  −z-direction (option F)

The Poynting vector or the energy flux of the radio wave is given by:

S = (1/μo) E x B

Where:

μo = the permeability of the medium through which electromagnetic wave passes

E = electric field

B = magnetic field

The directions of the vectors follows the right hand rules, as depicted in the attached picture.

In the given case, S or E x B is travelling in the negative y-direction.

The magnetic field B is in the positive x-direction. Hence, using the right hand rule, the direction of electric field E is in the negative z direction, or in the −z-direction (option F)

Learn more about electromagnetic wave here:

https://brainly.com/question/17149395

#SPJ4

The first chronometer was not very accurate, as it had an error rate of up to 15 minutes a day. However, it was still a major advancement in maritime navigation as it improved the accuracy of longitude determination substantially compared to the methods that were used before.

The invention of the first chronometer in the 18th century was a major milestone in the history of maritime navigation. The chronometer was a type of clock that was designed to be used onboard ships in order to accurately measure longitude. It was a major improvement over the methods that were used before, as it had an error rate of only 15 minutes per day. This meant that navigators could much more accurately determine their position at sea, which was critical for safe navigation.

The chronometer allowed for a much more precise determination of longitude than was previously possible. Before its invention, the best method of determining longitude was based on lunar observations, which was still highly inaccurate. With the chronometer, navigators could now determine their longitude within minutes rather than hours. This greatly increased the safety and efficiency of maritime travel.

Learn more about Chronometer:

https://brainly.com/question/29617091

#SPJ4

c) Superior and inferior portions.

The body's upper (superior) or lower (inferior) halves are separated by the transverse plane, also known as the axial plane.This plane is where rotational or horizontal movements take place, such as:Rotation: turning the torso or even a limb about its axis of rotation.

Transverse plane: A horizontal slit that divides the specimen's top and bottom.additionally called a cross-sectional plane.The left and right halves of the specimen are divided by a vertical cut made along the specimen's exact center line, or midsagittal plane.

To know more about body or organ visit:

https://brainly.com/question/16934328

#SPJ4

A chronometer can determine longitude by measuring the difference in time between a known point on land and the current location. This difference in time can then be used to calculate the longitude. For example, if the time at the known point is 12:00 pm, and the time at the current location is 12:30 pm, the difference in time is 30 minutes, which equates to 30 degrees of longitude.

One of the most important navigational tools available to sailors and explorers is the chronometer, which is used to determine longitude. Longitude is a measurement of distance east or west of a prime meridian, which is used to measure the position of a location relative to the rest of the world. Chronometers measure the difference in time between a known point on land and the current location, which is then used to calculate the longitude.

The invention of the chronometer dates back to the 18th century when John Harrison created the first accurate marine chronometer. This device was revolutionary for its time as it enabled sailors to calculate their longitude with some degree of accuracy for the first time. It was also used to set the time for navigational calculations, which allowed for more accurate and reliable navigation.

Today, chronometers are still used to determine longitude, although the technology has improved significantly since Harrison's time. Modern chronometers are incredibly accurate and reliable, ensuring that sailors and explorers can accurately calculate their position without having to rely on guesswork.

Learn more about chronometer :

https://brainly.com/question/5224178

#SPJ4

John Dalton’s atomic model claims that all matter is made of atoms. Atoms are indivisible and indestructible.

J. J. Thomson in 1904 proposed his famous “plum pudding model“ which  stated that atoms were known to consist of negatively charged electrons.

Rutherford suggested that Thomson’s plum pudding model was incorrect and introduces a new model that introduced  nucleus to the atom theory. Nucleus contains relatively high central charge concentrated into very small volume.
Neil's Bohr in his own model describes the atom as a positively charged nucleus, which is surrounded by electrons.

Quantum mechanics model proposed that electrons are moving around the nucleus not on specifically defined electron paths but in a certain three dimensional space in which their own occurrence has a certain probability.

Atomic theory is the scientific theory proposed that matter is composed of particles called atoms which its origins to an ancient philosophical tradition known as atomism.

In conclusion, Four numbers known as quantum numbers, were introduced to describe the characteristics of electrons and their orbitals in the Quantum mechanics model.

Learn more about atomic theory at: https://brainly.com/question/7622425

#SPJ1

Answer:

Below

Explanation:

Heat  capacity has units of  J / g °C

               if  g  of the two samples are equal , for comparison , this can

                  be reduced to   J / °C

sqec heat = J/°C  

or re-arranging :

J / spec heat    = °C    

   now if spec heat 1 > spec heat 2

              then adding the same J will cause less temp rise in 1 than in 2

Example :   adding 100 J of heat to each sample ....    and say,

specheat 1 = 4          and     specheat2 = 2

   J / specheat 1 = C

   100 / 4 = 25 ° C    Temp change                      

  J /specheat 2 =

   100 / 2 = 50     <===== so smaller spec heat results in higher ° C change

A cheetah may accelerate at a speed od 25.5 m/s within 4.00 seconds, which equals 51.

acceleration describes the speed and direction changes in velocity over time. Acceleration refers to the change in speed or direction of an item or point travelling straight forward. Due to the constant change in direction, motion on a circle accelerates even while the speed is constant.

According to Newton's Second Law on Motion, when a force applies on a mass object, acceleration occurs and speed increases. The application of the this motion law can be seen while bicycling. There is mass in your bicycle. The force is generated by the leg muscles pressing against the bicycle pedals.

To know more about acceleration visit:

https://brainly.com/question/12550364

#SPJ4

Answer:

115 J (100 J if following significant rule)

Explanation:

We can find the kinetic energy by applying the formula:

[tex] \displaystyle{ \text{ KE} = \dfrac{1}{2}mv^2}[/tex]

m is mass and v is velocity. Therefore, substitute in the formula:

[tex] \displaystyle{ \text{ KE} = \dfrac{1}{2} \times 72.62 \times {1.78}^{2} } \\ \\ \displaystyle{ \text{ KE} = \dfrac{1}{2} \times 72.62 \times 3.17} \\ \\ \displaystyle{ \text{ KE} \approx 115 \: \text{J}}[/tex]

If following the significant rule, it'd be 100 J but 115 J is more appropriate.

The Gravitational Potential Energy (GPE) of the pellet is 980 Joules.

To find the final Gravitational Potential Energy (GPE) of the pellet, we can use the formula:

GPE = mgh

Where m is the mass of the object (in this case, the pellet), g is the acceleration due to gravity (approximately 9.8 m/s² on the surface of the Earth), and h is the height the object is above a reference point.

In this case, the mass of the pellet is 0.010 kg, the acceleration due to gravity is 9.8 m/s², and the final height of the pellet is 100m.

So the final Gravitational Potential Energy of the pellet is:

GPE = (0.010 kg)(9.8 m/s^2)(100m)

GPE = 980 Joules

To learn more about Gravitational Potential Energy visit: https://brainly.com/question/3120930

#SPJ4

Maximum elevation that the rocket reached is calculated to be 1109.69 m.

Angle that is formed between the horizontal line and line of sight is called the angle of elevation.

Given, net acceleration is 25 m/s²

Height after burn,

S = 0.5 x f x t²

= 0.5 x 25 x 25 = 312.5 m

Velocity is f x t =25 x 5= 125 m/s

Rocket starts to fall to earth and at its maximum height the velocity is zero

0 = initial velocity - g x t

= 125 - 9.8 x t

Now,  t = 12.75 secs

As, Distance travelled, S = u x t - 0.5 x g x t^2

= 125 x 12.75 - 4.9 x 12.75^2

Now, S = 797.19 m

So total elevation = 312.5 + 797.19

Therefore, total elevation = 1109.69 m

To know more about elevation, refer

https://brainly.com/question/88158

#SPJ4

Distillation separates substances based on particle size.

When two chemicals with various boiling points are together, they are separated via distillation. Distillation cannot be used for two substances with the same boiling points since they both evaporate and accumulate in the condensation tube together if their boiling points are the same.

Due to the enhanced potential for liquid condensation offered by a fractionating column, fractional distillation is more effective than simple distillation. The vapour can clash and lose energy on a wide surface area in a fractionating column filled with glass beads or glass helices, which enables fast condensing and distillation of the mixture.

know more about condensation here

https://brainly.com/question/15563071#

#SPJ4

Distillation separates substances based on particle size.

Distillation separates substances based on particle size. Uses boiling points to separate different liquids separates substances based on particle size causes a chemical change is the best method for separating a solid and a liquid. When two chemicals with various boiling points are together, they are separated via distillation. Distillation cannot be used for two substances with the same boiling points since they both evaporate and accumulate in the condensation tube together if their boiling points are the same. Condensation is a process in which the gas is changed into a liquid form without the form of any other that we can study. condensation also takes place in water cycle when the cloud starts to vaporize and it condenses into rain and we see it as the water which is condensing from the cloud. it only occurs in the cold temperature and we see it then.

Learn more about condensation:

brainly.com/question/15563071

#SPJ4

Option (A) is correct ,if your vehicle breaks down on the road, the first thing to do is warn other motorists

A vehicle is a piece of equipment used to move people or goods. Wagons, bicycles, motorized, railroad, watercraft, amphibious, aircraft, and spacecraft are examples of vehicles.

Why are automobiles so crucial? The private automobile has changed modern civilization for more than a century by enabling freedom and independence of movement. Due to the growing distances between places like house, workplace, academic facilities, shopping malls, and recreational facilities, transportation is becoming ever more crucial.

To know more about vehicle visit :

https://brainly.com/question/8860896

#SPJ4

The composite beam is supported by a roller at A, pin attached at B, and fastened at C. (See pic). The sheer and moment diagrams' figures are included.

At the intersection of "A" and "B," the shear force remains constant. in the Shear diagram, the first incline plane.

Linear shifts in shearing force are present between "B" and "C." The bending moment diagram thus reveals the parabolic shape.

The moment is 0 at point "B."

By calculating the shear force and bending moment at a specific place on a structural element, such as a beam, shear and bending moment diagrams are analytical approaches that are used in conjunction with structural analysis to help structural design.

Learn more about shear diagram

brainly.com/question/29749446

#SPJ4

The voltage drop across a 5 Ω resistor if the current through it is 5 A is calculated to be 25 V.

From Ohm's law we know the equation, V = I R

where,

V is the voltage drop

I is the current

R is the resistance

Given that,

I = 5 A

R = 5 Ω

Putting the values in the above equation, we have,

V = I R = 5 × 5 = 25 V

Thus, the required voltage drop across a 5 Ω resistor if the current through it is 5 A is calculated to be 25 V.

To know more about voltage:

https://brainly.com/question/29196912

#SPJ4

The stated statement states that the right options are to discover the lowest and highest kilometers per hour.

Its speed is the rate in which an object's position shifts in any direction. Speed is defined as the ratio of the distance traveled to the time required to cover that distance. Speed is a numeric number since it just has a path and no magnitude.

Methods for determining the fastest cruising velocity.

Speed = Distance / Time = kilometers per hour

Consequently, Find the speed that is least in kilometers per hour.

The highest speed in kilometers per hour.

To know more about Speed visit:

brainly.com/question/28224010

#SPJ4

The complete question is-

Lebron is comparing flights departing from Minneapolis. Which 2 ways could Lebron find the flight with the fastest average speed? Choose 2 answers:

A). Find the least kilometers per hour

B). Find the greatest kilometers per hour

C). Find the least minutes per kilometers

D). Find the greatest minutes per kilometers

Answer:

99 meters

Explanation:

Apply the distance formula:

[tex] \displaystyle{s = ut + \dfrac{1}{2} g{t}^{2} }[/tex]

where u is initial velocity which is 0 m/s since there is no initial velocity by dropping an object.

t is time which we know is 4.5 seconds. Finally, g is a constant of acceleration due to gravity which on Earth equals to 9.8 m/s². Therefore:

[tex] \displaystyle{s = 0 \cdot 4.5 + \dfrac{1}{2}(9.8) {(4.5)}^{2} } \\ \\ \displaystyle{s = \dfrac{1}{2}(9.8) {(4.5)}^{2} } \\ \\ \displaystyle{s \approx 99 \: \text{m}}[/tex]

Therefore, the bridge is around 99 meters height.

Answer:

1) (0,0,10)

2) 10

3) 0.707

Explanation:

1) Given the x,y, and z magnitudes of both T and U, we find V by using the cross product: c = (ay*bz - az*by)i^ + (az*bx - ax*bz)j^ + (ax*by - ay*bx)k^

(i^ = "i hat" etc. sry to confuse)

in this case, I used a=T, b=U, and c=V:

V = (Ty*Uz - Tz*Uy)i^ + (Tz*Ux - Tx*Uz)j^ + (Tx*Uy - Ty*Ux)k^

Now plug in values:

V = (1*0 - 0*4)i^ + (0*2 - 3*0)j^ + (3*4 - 1*2)k^

V = 0i^ + 0j^ + 10k^

These are your components.

2) To get the magnitude of V, you add up the vector components:

sqrt( 0^2 + 0^2 + 10^2)

sqrt(100) = 10

Note: because they are vectors, you must use vector addition with the square root. (do NOT simply add 0 + 0 + 10 = 10.)

3) Lastly it asks for sin(theta), so we can use the equation of:

c = a*b*sin(theta)

Again I input c = V, a = T, b = U:

V = T*U*sin(theta)

Isolate sin(theta) on one side:

sin(theta) = V/(T*U)

To get just T or U, do vector addition once more for their x,y, and z components:

T = Tx + Ty + Tz = sqrt( 3^2 + 1^2 + 0^2) = sqrt( 9 + 1 + 0) = 3.162

U = Ux + Uy + Uz = sqrt( 2^2 + 4^2 + 0^2) = sqrt (4 + 16 + 0) = 4.472

Plug in values:

sin(theta) = V/(T*U) = 10/(3.162*4.472) = 0.707

The total north-south net force acting on the crate is the sum of the forces pushing north (960 N) and the force of friction pushing south (105 N). This is a net force of 960 N - 105 N = 855 N pushing north.

The total east-west net force acting on the crate is the sum of the forces pushing east (875 N) and the force of friction pushing west (80 N). This is a net force of 875 N - 80 N = 795 N pushing east.

This can be explained by Newton's second law, which states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

In this case, the crate is accelerating in the direction of the net forces acting on it (north and east). The forces of friction are opposing the motion of the crate, so they are subtracted from the total net force to determine the final acceleration.

Learn more about Newton's second law here: https://brainly.com/question/13447525

#SPJ4

Two moles of oxygen contain 1.2044 ×10²⁴ oxygen atoms.

The mole, which is denoted by the symbol "mol," is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

number of mole of O₂= 2 mole

number of atoms/molecules=number of moles × 6.022×10²³(Avogadro number)

substituting all the given values in the above equation, we get

number of  oxygen atoms = 2 × 6.022 × 10²³

number of oxygen atoms= 1.2044 ×10²⁴ oxygen atoms.

Therefore,  1.2044 ×10²⁴ oxygen atoms are there in a 2 moles of oxygen atoms.

To know more about mole click here

https://brainly.com/question/20486415

#SPJ4

If the vectors v⃗ 1 and v⃗ 2 are parallel, the v⃗ 1* v⃗ 2 is v1v2.

A vector refers to a quantity or phenomenon that is characterized by two independent properties: magnitude and direction. The dot product of two vectors gives a scaler value and is equal to the magnitude of first vector multiplied by magnitude of second vector multiplied by the cosine angle between the two vectors. It is given by:

v⃗ 1* v⃗ 2 = │v⃗ 1│*│v⃗ 2 │cos Ɵ

If the two vectors are parallel, the Ɵ = 0, hence

v⃗ 1* v⃗ 2 = │v⃗ 1│*│v⃗ 2 │cos 0 = v1*v2*1 = v1v2

Note: The question is incomplete. The complete question probably is: If v⃗ 1 and v⃗ 2 are parallel, find v⃗ 1* v⃗ 2, express your answer in terms of v1 and v2.

Learn more about Vector:

https://brainly.com/question/25705666

#SPJ4

Based on the free-body diagram, the x component of the acceleration is  -0.7 m/s² and the y component is 0 m/s²

According to the Newton second law of motion:

∑F = ma

Where:

∑F = net force

m = mass of the object

a = acceleration

The force acted on an object can be divided into its x-y components.

In the given problem,  mass of the object = m = 2.8 kg

a)  ∑Fx = 2 - 4 = -2  (in negative x direction)

Hence,

ax =  ∑Fx /m = -2/2.8 = -0.7 m/s²

b) ∑Fy = 3 - 3 = 0

Hence,

ay =  ∑Fy /m = 0/2.8 = 0 m/s²

The picture in your question is missing, but most probably it was on the attached picture. There was typo in your question, most likely it was:

In each of the two free body diagrams the forces are acting on an 2.8 kg object. (a). Find the value of a subscript x, the x component of the acceleration in diagram

(b). Find the value of a subscript y, the y component of the acceleration in diagram

Learn more about Newton law here:

https://brainly.com/question/18848496

#SPJ4

Or less 3000 N of force acts just on the hand when a ninja kick breaks a piece of wood with a 3000 N blow. In physics, a pressure effect has the power to change how an item moves.

A mass-containing object's velocity could alter and accelerate as a result of a force (for example, moving from a state of rest). A push or a pull can also be used to conceptualise force. According to the physics concept of force, a change in velocity is caused by the push or pull an item receives. A body's resting or moving status can be changed by an external agent known as force.

Learn more about force here

https://brainly.com/question/13191643

#SPJ4