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Explanation:Accuracy REFERS to closeness of a measured value or known valueFor example if a thing is given you to tell the weight of it WITHOUT WEIGHING it you said that it weight is 9 kg but the ACTUAL weight is 10 kg the 9 kg is your accuracy

tion:The term significant figures refers to the number of important SINGLE DIGITS (0 through 9 inclusive) in the coefficient of an expression in scientific notation . The number of significant figures in an expression INDICATES the CONFIDENCE or precision with which an engineer or scientist states a quantity.1.Non-zero digits are always significant.2.Any zeros between two significant digits are significant.3.A final zero or TRAILING zeros in the decimal portion ONLY are significant.

T=timem=massL= lengthk is CONSTANT

In PHYSICS, a dimensionless physical constant, sometimes called a fundamental physical constant, is a physical constant that is dimensionless, i.e. a PURE number having no units ATTACHED and having a NUMERICAL VALUE that is independent of whatever system of units may be used.

........EXPLANATION:DIMENSIONL FORMULA

the maintenance of constantshExplanation:osmotic pressure in the fluides of ORGANISM of control of WATER and salt CONCENTRATION .

Lets take SYSTEM is in equilibrium .The tension in the each string is CONSTANT ANS it is ASSUME that string is inelastic.F=T₁=T₃                  T₅ = mg               T₅= = T₂ + T₃T₂=T₃So we can SAY thatmg =2 T₂T₂ = mg/2T₃=mg/2   F=T₁=T₃  = mg/2T₄ = T₁ + T₃ + T₂T₄ = mg/2 + mg/2+ mg/2T₄ = 3 mg/2

We have been given two vectors: To find the scalar product of two vectors we will USE: Where, i, j, and k are the components of UNIT vectors ALONG 'x', 'y', and 'Z'. so the scalar product is given by: So the scalar product of vectors a and b is .VECTOR product of the vectors 'a' and 'b' is given by: Substituting the values of each component we get: The vector product of 'a' and 'b' is represented by :

(x-1)(2x+5)2x^2+3x-5

1.Newton METRE is TORQUE unit2.Candela is luminious instensity 3.Radian is unit of measure4.hertz is unit of frequency5.square metre is unit of area6.telsa is unit of MAGNETIC induction7.ampere is unit of electric current8.Kelvin is unit of TEMPERATURE 9.volt is unit of electric10.mole is unit of AMOUNT of substance11.coulomb is unit of electric charge12.farad is unit of capacitance13.steradian is unit of solid angle.

-Mass of first block = M = 0.3 KgMass of Second block = m = 0.2 KgWe are required to find tension in the strings T1 and T2 respectively. We will take second block to find and then for we will consider whole BODY as a SYSTEM. Again,For HENCE,=5N=2N

t IMPLIES that EITHER of the two MUST have a MAGNITUDE equal to zero.

a three-dimensional analog of an ANGLE, such as that subtended by a cone or formed by planes meeting at a point. It is measured in steradiansExplanation:In GEOMETRY, a solid angle is a measure of the amount of the FIELD of view from some PARTICULAR point that a given object covers. That is, it is a measure of how LARGE the object appears to an observer looking from that point. The value of the solid angle is numerically equal to the size of that area divided by the square of the radius of the sphere.Hope it helps pls mark as the brainliest*puppy eyes*

G=V-U/T9.8=0-U/2SECU=4.9m/sUSING SECOND EQUATION OF MOTIONS=UT+1/2AT²A=GS=4.9+1/2×9.8×2²S=4.9+1/2×9.8×4S=4.9+4.9×4S=9.8×4S=3.92 MTRTHE HIEGHT =3.92 METER EXPLANATION:U=INITIAL VELOCITYV=FINAL VELOCITYG=9.8M/SGIVEN:V=0U=?G=9.8T=2 SEC

6+0.5+2.5=9.0=9Explanation:ANSWER is 9

I am in class 11. I took PCM too. have to do REALLY HARD WORK and have to study a lot and lot. I am doing the same. BETTER if you will do it too.✌✌

i THINK 2 TIME of APPLIED FORCE

Noise pollution can affect the health and behavior of humans adversely. Excessive voice can also cause damage to the physiological health. Elderly people exposed to excessive voice may suffer extensively reduced hearing sensitivity. Even children are more vulnerable to noise pollution.Noise pollution affects both health and behavior. UNWANTED sound (noise) can damage physiological health. Noise pollution can cause hypertension, high stress levels, tinnitus, hearing loss, sleep disturbances, and other harmful and disturbing effects.Noise pollution may be defined as any unwanted electromagnetic signal (sound) that produces a JARRING or displeasing EFFECT and which interferes with human communication, comfort and health. Noise pollution also CAUSED when the loudness of the sound BECOMES irritating or unbearable.

2 sec 4/3 secExplanation:Case 1 :A is Dropped B is VERTICALLY upward thrown with velocity of 50 m/sDistance to be covered by both = 100 mLet say After Time T they MeetUsing S = Ut + (1/2)at²Distance Covered by A  =  0*t + (1/2)gt²Distance covered by B = 50T - (1/2)gt²(1/2)gt² + 50t - (1/2)gt² = 50t50t = 100=> t = 2 secCase 2 :A is Vertically DOWNWARD thrown with velocity of 25 m/sB is Vertically upward thrown with velocity of 50 m/sDistance to be covered by both = 100 mLet say After Time T they MeetUsing S = Ut + (1/2)at²Distance Covered by A  =  25*t + (1/2)gt²Distance covered by B = 50t - (1/2)gt²25t + (1/2)gt² + 50t - (1/2)gt² = 75t75t = 100=> t = 4/3 sec

M=(2/V^2)×K F=M×A THEREFORE F=(2/V^2)×a×s

the PRESSURE EXERTED by the PLANES MAKING an ANGLE 30° will be

your ANSWER is VACUUM TUBE

I don't KNOW SORRY sorry sorry sorry sorry sorry

The parallelogram law of vector addition : If TWO vectors acting simultaneously on a particle are represented in magnitude and DIRECTION by the two ADJACENT sides of a parallelogram drawn from a point, then their resultant is COMPLETELY represented in magnitude and direction by the DIAGONAL of that parallelogram drawn .. may help you

tion:when we are in a MOVING bus, our body is in motion with the bus. the tendency of our body to resist any change in its state of motion and continue to remain in motion is known as its inertia of motion. when brakes are APPLIED we TEND to fall FORWARDS die to this inertia.

a. VELOCITY under GRAVITY

The height of the balloon when THESTONE reaches the GROUND = 722 meter.Explanation:Refer to the PIC.

.......!!!!!!!!!We KNOW thatF=maMass of the OBJECT =MAcceleration is ZERO because force is on both directionSo at first CASE it is zeroAt second case it is equal to its MASS

tion:The process of SPLITTING a vector into VARIOUS parts or COMPONENTS is CALLED Resolution of vector.

Pressurecontinuous physical force exerted on or against an OBJECT by SOMETHING in contact with it.Buoyancythe ability or TENDENCY of something to FLOAT in WATER or other fluid.

increaseExplanation:because of when going down our BODY ROLLS so FAST and INCREASE in SPEED

3^2 = 9 m..( not SURE about the ANS)