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tion:As per the QUESTION,We know that , the VECTOR having a magnitude of one is called unit vector.Now,According to GIVEN vector of the question,Magnitude of a vector a=xi + yj is WRITTEN in mathematical form is:Therefore magnitude of given vector,|a| = 1Therefore the given vector is unit vector.Hence, PROVED.

total RESISTANCE of WIRE Atotal resistance of wire Bequivalent resistance of the wires CE and DF connected paralleladding 1,2 and 3 we GET the equilvalent resistance

sorry I don't KNOW ur ANSWER HOPE you MAY UNDERSTAND

Explanation:Newton's motion equation: v^2 = u^2 – 2as…….. where a: retardation (opposite of acceleration) and s: distance covered. 1st case: u = 30 km/h = 25/3 m/s v = 0, s = 8 m Therefore, 0^2 = (25/3)^2 - 2 × a × 8 This gives a = 4.34 m/s^2 2nd case: u = 60 km/h = 50/3 m/s v = 0 a = 4.34 m/s^2 Now, 0^2 = (50/3)^2 - 2 × 4.34 × s This gives s = 32 m Thus on applying brakes the car will stop after covering 32 m. 3.5k views · View 13 Upvoters Related QuestionsMore Answers Below Three cars (car F, car G, and car H) are MOVING with the same speed and slam on their brakes. The most massive car is car F, and the least mas... A car was traveling at 12 m/s when the driver stopped on the brakes. If the car comes to a fuel stop in 5 sec, what was its AVERAGE speed? And... How will we determine the speed of a moving car? A car and bike are moving at the same velocity. If the brake is applied at the same time, then who is the first in a resting motion? In 2 hours 40 mins, a car travels 100km. At what speed is the car traveling? Kaustubh Roy Kaustubh Roy, Junior Research Fellow at Indian Institute of Science Education and Research, Kolkata (2018-present) ANSWERED Jul 27, 2018 first of all, a car that moves at 30km/s is a rocket. (Escape velocity of earth is 11km/s) It shouldn’t stop if you brake it at 30km/s COZ you’d be safely in outer SPACE where there’s no ground friction. But! If you have a magic thruster engine that can stop a rocket moving at 30km/s in just 8m, you probably shouldn’t worry about it moving at 60km/h. It’ll stop in no time. :)

inty in its POSITION is 1.01×10^5 m

MATE❤✌The energy transition will be equal to 1.55⋅10−19J .So, you know your energy levels to be n = 5 and n = 3. Rydberg's equation will allow you calculate the WAVELENGTH of the photon EMITTED by the electron during this transition1λ=R⋅(1n2final−1n2 initial) , whereλ - the wavelength of the emitted photon;R - Rydberg's constant - 1.0974⋅107m−1 ;n final - the final energy LEVEL - in your case equal to 3;n initial - the initial energy level - in your case equal to 5.So, you've got all you need to SOLVE for λ , so1λ=1.0974⋅107m−1⋅(132−152)1λ=0.07804.107m−1⇒λ=1.28⋅10−6m Since E=hcλ , to calculate for the energy of this transition you'll have to multiply Rydberg's equation by h⋅c, where - Planck's constant - 6.626⋅10−3J ⋅sc - the speed of light - 299,792,458 m/s So, the transition energy for your particular transition (which is part of the Paschen Series) is E=6.62⋅10−34J⋅s⋅299,792,458m/s1.28⋅10−6m E=1.55⋅10−19J✌❤PIYUSH_SHARMA❤✌

25WExplanation:

9.8 into MASS of the OBJECT

we people disturb the nature of the day of the SEASON in ur 5able and then I am just kidding U R GIVING me

te the AMOUNT of HEAT generated while transferring 90000 coulomb of charge between the two terminal of a BATTERY of 40V in one hour. also determine the power EXPENDED in the process.Q=90000coulombs,T=1hour=3600 seconds,V=40 voltI=Q/T=90000/3600=25AmperesR=V/I=40/25=1.6 ohmsH=I×I×R×T=25×25×1.6×3600=3600 kilojouleP=I×I×R=25×25×1.6=1000watt=1kilowatt.

metal is good conductor and non metal is BAD conductor of HEAT and electricityExplanation:ex metal is IRON NONMETAL is plastic

Electric potential ENERGY PER UNIT test CHARE

Frequency of AC is the no of time current changes its DIRECTION in 1sec.In INDIA its value is 50HZ

I = 0.25 A                &             E = 3.6 kwhExplanation:P = 60 wV = 240 v t = 6 hI = ?E = ?P = V II = P / VI = 60 / 240 I = 0.25 AE = P TE = 60 x 6 / 1000E = 3.6 KWH

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E = 14400 JExplanation:V = 12 VI = 2 At = 10 x 60 = 600 SE = ?E = V I tE = 12 x 2 x 600E = 14400 J

avg. velocity=total distance/total timet₁= 120/40   =3 hrt₂=120/30   =4 hrtotal distance=2×120                       =240 kmavg. velocity=total distance/total timev=240/3+4  =240/7   =34.2        [APPROX.]HOPE it helped and pls MARK as brainliest:)

u can understand how to calculate the X COMPONENT from the below ATTACHED image

e it's a good ANSWER for you,When a real gas is under high PRESSURE or is near its boiling POINT, so that the gas MOLECULES are almost in contact, it no longer BEHAVES ideally because molecular volume and intermolecular interactions become significantmay be it's help for you

The SPEED of the other train is 8 m/sExplanation:GIVEN, the speed of the first train = 12 m/sLet the speed of the other train be v m/sThen speed of the first train relative to the second train = 12 + vThe first train covers total LENGTH of 108 + 112 = 220 m with speed 12 + v in 11 secondsTherefore, USING distance = speed × time220 = (12 + v) × 11or, 12 + v = 220/11 = 20or, v = 20 - 12 = 8Therefore, the speed of the other train is 8 m/sHope this answer is helpful.

speed=315 m/slength of train=63 mExplanation:take LENGTH of train as xx=3v105+x=8vv=(105+x)/3=x/8v=105/8=5x/24using CROSS MULTIPLICATION,v=315=5xspeed=315m/sx=315/5  =63 mhope it helped and pls MARK as BRAINLIEST:)

MATE❤✌Taking d to be the width of the river and also the the shortest DISTANCE covered by the swimmer. If the swimmer MAKES an angle θ with the UPSTREAM, then angle (90-θ) will be normal to the STREAM. Thus, shortest time taken will be the own distance i.e t=d/v.If speed of the river is v.Thus, making an angle (90-θ) will be COS(90-θ)  and so speed will be vcos(90-θ). The shortest distance to cover the river in time will be t1 = d/vcos(90-θ) t1= d/vsin(θ).The ratio will be  t/t1               =(d/v)/(d/vsin(θ))               = sinθ.✌❤PIYUSH_SHARMA❤✌

dsThe Formula used to calculate the distance covered in nth second:SN = ut + 1/2a(2n -1)Calculating the first distance(s1) USING the formula mentioned above:= g/2(2 x 1 - 1)= 10/2(2 x 1 - 1)= 5 (1)= 5 metersCalculating the second distance (s2) using the formula mentioned above:= g / 2 (2 x 2 - 1)= 10/2(4 - 1)= 5 (3)= 15 metersCalculating the third distance (s3) using the formula mentioned above:= g / 2 (2 x 3 - 1)= 10/2 (6 - 1)= 5 (5)= 25 metersAdding all the DISTANCES which we obtained we get:= 5 + 15 + 25= 45 metersNow calculating time taken:g / 2(2T - 1) = 45Substituting all the known values into this equation we get:5(2T - 1) = 4510T - 5 = 4510T = 50T = 50 / 10T = 5 secondsTherefore, the time the stone remains in the air is for 5 seconds.

A vernier scale is a visual aid to TAKE an ACCURATE measurement reading between two GRADUATION markings on a linear scale by using mechanical interpolation; thereby INCREASING resolution and reducing measurement uncertainty by using Vernier acuity to reduce HUMAN estimation error.

2.25Explanation:CORRECT correct INFORMATION if I am a LITTLE more GOOD STUDENT

this is INCOMPLETE

a proton and NEUTRON have the moving of VELOCITY same of the stimulator reason for the MAGNETIC field MAGNET is the substance for the proton and Newton

the inter molecular SPACE between iron is very small as compared to CHALK .Explanation:SIMILARLY chalk only PARTIALLY dissolves in water but iron does not do so .

answer is a physical QUANTITY of dimension length can be FORMED for Pi then 10-1 SAREES THREE Pyar

The reaction TIME of the PERSON = 0.25 secondsExplanation:Speed of the car = 72 km/hr = 72 × 5/18 m/s = 20 m/sThe person applies the breaks after COVERING a distance of 5 mTherefore the time taken to COVER the 5 m distance will be his reaction timeTime taken = distance/speed = 5/20 = 0.25 secondsTherefore, the reaction time of the person = 0.25 seconds.Hope this is helpful.

hyy veeru gud evening ✌ ✌ ✌ here is ur answer ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤Explanation:By changing its shape, the lens changes the focal distance of the EYE. In other words, it focuses the light rays that pass through it (and onto the retina) in order to create CLEAR images of By changing its shape, the lens changes the focal distance of the eye. In other words, it focuses the light rays that pass through it (and onto the retina) in order to create clear images of OBJECTS that are positioned at VARIOUS distances. It also works TOGETHER with the cornea to refract, or bend, light. that are positioned at various distances. It also works together with the cornea to refract, or bend, light.hope its helpful ✌ ✌ ✌ ✌ plz mark as brillent ✌ ✌ ✌ ✌ veeru luv u always there to give the answer of ur questions didu ke veeru✌✌✌❤❤❤

a=5m/s² .       m= 2kgF=ma=2×5= 10N

Explanation:1) Let the Hinge reaction of the pulley be and along the STRINGS CONNECTED to both the MASSES. By string constraint,2) Applying Newton's Laws on both the masses,Let  'a' be acceleration of mass 'm' as shown in figure.For the right mass 'm',For left mass 'm',3) USING above two equations,4) Now, Magnitude of reaction given by hinge is given byHence, Option (2) is correct answer.