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.....DIRECTLY PROPORTIONAL to its displacement from the EQUILIBRIUM position as well as being directed TOWARDS this equilibrium position.

If a sound is not absorbed or transmitted when it strikes a SURFACE, it is reflected. The law for reflection is the same as that of LIGHT, ie., the angle of incidence of a sound wave equals the angle of reflection, just as if it were produced by a 'mirror image' of the STIMULUS on the OPPOSITE side of the surface.

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P= 200,000 PaExplanation:P = F/A(5mm^2 = 5 / 1,000,000 m ^2 )P = (10 X 1,000,000 ) / 5P  = 2,000,000 N/m^2  or PASCALS    = 2 x 10^6 Pa

→ When a LIGHT changes its medium some changes occurs in its properties the phenomenon is KNOWN as refraction.→ If the light is INCIDENT at an angle (0

2) A positive sign in the VALUE of the magnification indicates that the image is virtual.3) ans-SPHERICAL mirrors have wide applications. So, if spherical mirrors were not known to human beings, 1) Their important role in hospitals, rear-view mirrors, would have been incomplete.2) Use of concave mirrors in observing inner PARTS of MOUTH by denstists would not have been POSSIBLE.3) Use of convex mirrors in ATMs, computer monitors, sun glasses would not have been possible.4) It would not have been possible to observe small objects as big if concave mirrors were not known.mark as Braineliast

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The DENSITY of an OBJECT DETERMINES whether it will FLOAT or sink in another substance. An object will float if it is less dense than the liquid it is PLACED in. An object will sink if it is more dense than the liquid it is placed in.

y Formula , Pressure = Force / AREA F = P X A = 40 x 10 = 400 N

The earth shrinks 50% of its real RADIUS . hence, WEIGHT of BODY will be (1/4)th of weight of body when radius of earth is real.

the ANSWER ILL centimeterExplanation:

Electric fuse works on the heating effect of electric CURRENT. when electricity passes through the WIRES it creates heat. fuse is made up of a LOW MELTING point. due to the heat created by the electric current, if excess current passes through the fuse,the fuse melts down and prevents excess flow of electric current...Explanation:follow me

7/root 2Explanation:IF ONLY COMPONENT LET VECTOR A = 3i^+4j^COMPONENT = (3i + 4j ) UNIT VECTOR OF (i + J)(3i + 4j )(i/root 2 +j/root 2 )answer = (3/root 2 + 4/ root 2)= 7/root 2

Light BENDS by Itself. Any physics student knows that light travels in a STRAIGHT line. But now researchers have SHOWN that light can also travel in a curve, without any external INFLUENCE. ... Out in space, light rays passing near very massive objects such as stars are seen to travel in CURVES.

Matches use SULFUR, phosphate and a friction AGENT held together by a binding agent. With a match, heat ignites the phosphorous on the head of the match. To keep the fire going, the match needs more oxygen than is available from the AIR alone.Explanation:hi guys please brainllieast me$$$

scooter MOVING at a speed of 10m/s is stopped by applying BRAKES which produce a uniform ACCELERATION of -0.5 m/s² .To findHow MUCH distance will be covered by the scooter before it stops ?SolutionInitial speed (u) = 10m/sFinal velocity (v) = 0Acceleration (a) = -0.5 m/s² Distance covered (s) = ?According to third equation of motion→ v² = u² + 2as→ (0)² = (10)² + 2 × (-0.5) × s→ 0 = 100 - s→ s = 100 mHence, distance travelled by scooter is 100mNote : (-) minus shows retardation

60 DEGREE with RESPECT to flow of waterExplanation:COS Θ=base/hypotenuse =3/6=1/2cosΘ=1/2Θ=60®Hope it HELPS :)

Hey mate here's your answerYou add all the values of the circuit which gives 25OHM and then DIVIDE it by 5 CUZ there's a VALUE of RESISTANCE between them

tion:Uniform Motion:DEFINITION: This type of motion is defined as the motion of an object in which the object travels in a straight line and its VELOCITY remains constant along that line as it covers equal distances in equal intervals of time, irrespective of the duration of the time.Uniform MotionIf a body is INVOLVED in rectilinear motion and the motion is consistent, then the acceleration of the body must be zero.Example of Uniform Motion:If the speed of a car is 10 m/s, it means that the car covers 10 meters in one second. The speed is constant in every second.Movement of BLADES of a ceiling fan.Non Uniform Motion:Definition: This type of motion is defined as the motion of an object in which the object travels with VARIED speed and it does not cover same distance in equal time intervals, irrespective of the time interval duration.Non Uniform MotionIf a body is involved in rectilinear motion, and if the motion is not consistent, then the acceleration of the body must be non-zero.Example of Non Uniform Motion:If a car covers 10 meters in first two seconds, and 15 meters in next two seconds.The motion of a train.

If the waters continues to cool,its DENSITY will increase again,and the water will expand.it is the property of water that allows  the ICE to WEDGE open CRACKS in sidewalks and rocks and CAUSES cans and bottles of soft drink to  explodein the freezerExplanation:

Vibration is the change over a PERIOD of time and the WAVE is a LENGTH TRAVELED during the vibration period.

a MOVING charge particle generates both ELECTRIC and magnetic field. SINCE the particle is charged, it will GENERATE electric field irrespective of the FACT that its stationary or moving

▪ Initial velocity = zero▪ HEIGHT = 20m▪ Acceleration due to gravity = 10m/s²To Find :▪ Final velocity of ball.▪ Time taken by ball to reach at the ground.Concept :→ Since, acceleration due to gravity has said to be constant through the journey, we can easily APPLY EQUATIONS of MOTION to solve this type of questions.→ For a body falling freely under the ACTION of gravity, g is taken positive.Calculation :⚾ Final velocity :⚾ Time taken by ball :

Which physical quantity is represented by √λg,whereλ is wavelength and G is acceleration DUE to gravity ? This represents SPEED or velocity.Explanation:please mark as brainliest answerand FOLLOW me plz

the SHIP WOULD rise up as it is GOING from rarer to denser medium .

▪ Distance covered in first hour = 20km▪ Distance covered in second hour = 40km▪ Distance covered in THIRD hour = 30kmTo Find :▪ Average speed of the train.Concept :✏ Average speed is defined as the ratio of TOTAL distance travelled to the total TIME taken.✏ It is a SCALAR quantity.✏ It has only magnitude.✏ It can't be negative/zero.✏ SI unit : m/sCalculation :

m= 700 kgu= 90 km/hr = 90 * 5/ 18 m/s = 25 m/s v = 36 km/hr = 30 * 5/18 m/s = 10 m/st = 10s a = ?F = ?a= (v-u) /TA = (10 - 25) / 10a = -15/10 = -1.5 m/s ²negative SIGN means car is retarding we know that Force = mass * accelerationso, 700 * ( - 1.5) F = -1050 N THEREFORE ∴ the force applied by the brakes is 1050 N in the opposite direction .hope it HELPS =)pls thumbs up

tion:HOPE it HELP youthis is the MEANING of critical angle

Newton's second law says that the net FORCE on an object is EQUAL to the mass of the object and resulting acceleration. Therefore: a=F/m= 3 N / . 1 kg = 30 meters per second per secondExplanation:please mark as brainliest answerand FOLLOW me plz

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