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acceleration = -1.2 m/s² 0.12 NExplanation:from Graph it is very CLEAR thatVelocity at t = 0 sec is 12 m /sVelocity at t = 10 sec is 0 m/sacceleration = (0 - 12)/(10 - 0)= -12/10= -1.2 m/s²acceleration = -1.2 m/s²Force = mass & accelerationMass = 100G = 0.1 kg=> Force = 0.1  * 1.2  = 0.12 NFORCE EXERTED by the track to bring the ball to rest = 0.12 N

we can REDUCE friction by OILING or greacing the SURFACE Explanation:hope it HELPS you

2198mExplanation:

n: Factors Affecting FrictionFriction depends partly on the smoothness of the contacting SURFACES, a greater force being needed to MOVE two surfaces past one another if they are rough than if they are smooth. However, friction decreases with smoothness only to a degree; friction actually increases between two extremely smooth surfaces because of increased attractive electrostatic FORCES between their atoms. Friction does not depend on the AMOUNT of surface area in contact between the moving bodies or (within certain limits) on the relative speed of the bodies. It does, however, depend on the MAGNITUDE of the forces holding the bodies together. When a body is moving over a horizontal surface, it presses down against the surface with a force equal to its weight, i.e., to the pull of gravity upon it; an increase in the weight of the body causes an increase in the amount of resistance offered to the relative motion of the surfaces in contact.

. The ratio between the adopted centrifugal ratios of roads and RAILWAYS is 2:1 These centrifugal ratios DETERMINE WHETHER the TRAVELLING on these roads will comfortable or not. Centrifugal force is an inertial force away from the rotational axis to ACT upon all the objects.

is AThe PROPOGATION of sound wave is in the DIRECTION of the VIBRATION of vibrating body.(to and FRO). They travel as compression and rarefaction in that medium.

acid is ONE that does not dissociate completely in solution; this means that a WEAK acid does not donate all of its hydrogen ions (H+) in a solution.▪The MAJORITY of acids are weak.▫Weak acids ionize in a water solution only to a very MODERATE extent.▪The Ka of weak acids varies between 1.8×10−16 and 55.5.▫Although it is only a weak acid, a concentrated enough solution of acetic acid can still be quite acidic.Examples of weak acids include :-Formic acid (HCOOH)Acetic acid (CH3COOH)Hydrocyanic acid (HCN)Water (H2O)THANKS_❗❗====×====×====×====×====

. the FOCAL LENGTH of the EYE LENS is MAXIMUM

RE IS YOUR ANSWER Area of rectangle =lxb =55M x 35M =1925m^2May this helps you ✌️ ཋཛ ཋrainly.....

I don't KNOW this ANSWER EXPLANATION:SRY

t INFLATE itself NA YAAR

r Wave MOTION TRANSFER energy from one point to another , usually without PERMANENT displacement of the particles of the medium . HOPE it's helped you..... Plz marks as Brainleist answer

A supernova is a powerful and luminous stellar explosion. At its peak brightness, the OPTICAL luminosity of a supernova can be comparable to that of an entire galaxy, before fading over several weeks or months. A supernova is a transient astronomical event, OCCURRING during the last evolutionary stages of a massive star or when a white dwarf is triggered into runaway nuclear fusion. The original star, called the progenitor, either collapses to a neutron star or black hole, or it is completely destroyed.Supernovae are more energetic than novae. In Latin, nova means "new", referring astronomically to what APPEARS to be a temporary new bright star. Adding the prefix "super-" distinguishes supernovae from ordinary novae, which are far less luminous. The word supernova was coined by Walter Baade and Fritz Zwicky in 1931.Only three naked-eye supernova events have been observed in the Milky WAY during the last thousand years. The most recent directly observed supernova in the Milky Way was Kepler's Supernova in 1604, but the remnants of recent supernovae have also been found. Observations of supernovae in other galaxies suggest they occur in the Milky Way on average about three times every century. These supernovae would almost certainly be observable with modern astronomical telescopes. The most recent naked-eye supernova was SN 1987A, the explosion of a BLUE supergiant star in the Large Magellanic Cloud, a satellite of the Milky Way.Thanks for the question. Hope it helps you.

The correct answer is (D).As per the recent understanding, LIGHT consists of photons OBEYING the rules of waves.Explanation:According to the quantum theory of light, it consists of packets of energy particles known as photons.However, light has DUAL NATURE, i.e. it has both the properties of a particle as WELL as wave. This is known as wave-particle duality. Young'sdouble-slitt experiment demonstrates this property.

tion:The strong ACIDS are hydrochloric ACID, NITRIC acid, SULFURIC acid, hydrobromic acid, hydroiodic acid, perchloric acid, and chloric acid are some of strong acides.Follow

(i)2piR= 440M(II)ZERO(iii)440/11 = 40m/s(iv)zeroExplanation:displacement depends upon final and initial position

Average velocity of an object can be defined as the displacement with REGARDS to original POSITION divided by the time. In other WORDS, it is the rate at which an object makes displacements with time. Like average speed, the SI UNIT is meters per second.

of the glass = length × BREADTH × height = 30 cm × 25 cm × 2 cm = 1500 cm^3 mass = 7.5kg = 7.5 × 1000 g = 7500g DENSITY = mass/volume = 7500g/1500cm^3 = 5g/cm^3plzz mark it as brainliest

j+5k) B=(2i+6k+7k) =(2i+13k) ABAR CROSS bbar=2.2+5.13=4+65=69 ANSWER is 69

periodic changesday and nightheartbeats of a normal personmovement of moon around the earth.circular motiona CHILD sitting on a MERRY Go Roundrevolution of the Moon around the earthrectilinear motiontrain moving on a straight RAIL trackmovement of a SNOOKER ball car or bus moving on a straight roadfree falling fruit from a tree branchExplanation:mark me as BRAINLIEST

to STOP or ACCELERATE it

V=120m/s S=360mExplanation:U=0 a= 20m/s t= 6 s v=u+at v=0+(20)(6)v=120m/s v^2-u^2=2as v^2/2a=s (120)^2/2*20=360ms=360m

tion:Newtons third law of motion states thatFor every ACTION there is an EQUAL and opposite REACTION

when BALL is THROWN UPWARD the velocity and accelaratio at the HIGHEST point is 0............becuase the speed is 0 at the highest point so there is no CHANGE in velocity at the highest point.

✅Here's your answer#Cream from the ICE cream can be separated by CENTRIFUGATION... HOPE it HELPS ✌

HIS DISPLACEMT WILL BE 3.14 ×R

it is not FULL QUESTIONPLEASE GIVE full QUESTION

Netforce is the VECTOR SUM of TWO FORCES ACTING on a particle.From which direction is the force applied more,the particle will move in that direction and the net force will be on the direction of force applied.It follows the Newton's second law of motion

ext of energy : POWER is defined as the RATE of consumption of energy.P = Energy/ Time______________________In CONTEXT of work : Power is the rate of doing work.P = Work/time____________________

Sound travels at different speeds depending on what it is traveling through. Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through GASES, faster through liquids, and fastest through solids. Temperature also affects the speed of sound.Gases:The speed of sound depends upon the properties of the medium it is passing through. When we LOOK at the properties of a gas, we see that only when molecules collide with each other can the condensations and rarefactions of a sound wave move about. So, it makes sense that the speed of sound has the same order of magnitude as the average molecular speed between collisions. In a gas, it is particularly important to know the temperature. This is because at lower temperatures, molecules collide more often, giving the sound wave more chances to move around rapidly. At freezing (0º Celcius), sound travels through air at 331 meters per SECOND (about 740 mph). But, at 20ºC, room temperature, sound travels at 343 meters per second (767 mph).Liquids:Sound travels faster in liquids than in gases because molecules are more tightly packed. In fresh water, sound waves travel at 1,482 meters per second (about 3,315 mph). That's well over 4 times faster than in air! Several ocean-dwelling animals rely upon sound waves to communicate with other animals and to locate food and obstacles. The reason that they are able to effectively use this method of COMMUNICATION over long distances is that sound travels so much faster in water.Solids:Sound travels fastest through solids. This is because molecules in a solid medium are much closer together than those in a liquid or gas, allowing sound waves to travel more quickly through it. In fact, sound waves travel over 17 times faster through STEEL than through air. The exact speed of sound in steel is 5,960 meters per second (13,332 mph)! But, this is only for the majority of solids. The speed of sound in all solids are not faster than in all liquids.

tion:The Operator is a form of The Process. It is comprised of a large white cuboid with four small diamond-shaped eyes on every flat SIDE. It has no direct offensive capability but has high health and "attacks" by spawning other MEMBERS of the process. It is the only minor process UNIT and has no Limiter FILE associated with it.

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velocity refers to how fast an OBJECT ROTATES or revolves relative to another point, i.e. how fast the angular position or orientation of an object changes with TIME. There are TWO TYPES of angular velocity: orbital angular velocity and spin angular velocity. plzzz mark as brainliest

One TYPE is the energy a moving body possesses by virtue of its MOTION. Every moving object has the CAPACITY to do WORK. By striking another object that is FREE to move, the moving object can exert a force and cause the second object to shift its position. While the object is moving, it has the capacity for doing work.