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:Displacement of OBJECT is given BYS = t³ + 4tWe have to FIND acceleration of object at t = 3s★ Instantaneous velocity :In order to find instantaneous velocity, we have to differentiate the displacement EQUATION with respect to time.➝ v = ds/dt➝ v = d(t³ + 4t)/dt➝ v = 3t² + 4★ Instantaneous acceleration :In order to find instantaneous acceleration, we have to differentiate the velocity equation with respect to time.➝ a = dv/dt➝ a = d(3t² + 4)/dt➝ a = 6tBy substituting t = 3, we get➝ a = 6(2)➝ a = 12 m/s²

Two types of ENERGY losses OCCUR in TRANSFORMERS: Load and No-Load losses. Load losses result from RESISTANCE in the COPPER or aluminum windings. Load losses (also called winding losses) vary with the square of the electrical current (or load) flowing through the windings.Explanation:Hope this helps you dearPlease mark as brainliest......

10.33 paExplanation:p=force/area

Friend ANSWER is FOURTH A is FALSE but R is true

The numbers lying between 200 and 400, which are divisible by 7, are 203, 210, 217, ­­­­­­­­… 399 ∴First term, a = 203 Last term, l = 399 Common difference, d = 7 Let the number of terms of the A.P. be n. ∴ an = 399 = a + (n –1) d ⇒ 399 = 203 + (n –1) 7 ⇒ 7 (n –1) = 196 ⇒ n –1 = 28 ⇒ n = 29 s29=29/2 (203+399)       = 29/2(602)       = (29)(301)       =8729       Thus, the REQUIRED sum is 8729. Explanation:

5.67 is more precise Explanation:Precision is a MEASUREMENT of the REPEATABILITY, or consistency, of a measurement. It is possible to have a very precise measurement WITHOUT SCATTER (or noise) that is repeatable and WOULD be considered precise (repeatable)  .

r or scalar quantity in physics is one that can be described by a single element of a number field such as a real number, often accompanied by units of measurement (e.g. cm). A scalar is usually said to be a physical quantity that only has magnitude, possibly a sign, and no other characteristics. This is in contrast to vectors, tensors, etc. which are described by several NUMBERS that CHARACTERIZE their magnitude, direction, and so on.The concept of a scalar in physics is essentially the same as a scalar in mathematics. Formally, a scalar is unchanged by coordinate system transformations. In classical theories, like Newtonian MECHANICS, this means that rotations or reflections PRESERVE scalars, while in relativistic theories, Lorentz transformations or space-time translations preserve scalars.

40km/hourExplanation: FIRST FIND DISTANCE s= d÷t d=s×t

I = 0.0024 AExplanation:GivenVoltage = 240V Resistance R = 100000 ΩLet CURRENT be 'I'By OHM's lawV = IR ⇒240 = I*100000∴ I = 240/100000 = 0.0024A∴ I = 0.0024 A

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this is your ANSWERI HOPE it HELPS you

:SPEED of cyclist = 18km/h Radius of circular path = 3cm = 0.03mCoefficient of friction = 0.1We have to find whether the cyclist will SLIP or not while taking the TURN★ A vehicle taking a circular turn on a level ROAD. If μ is the coefficient of friction between tyres and road, then the maximum velocity with which the vehicle can SAFELY take a circular turn at radius r is given byVmax = √(μrg)★ Conversion :1 km/h = 5/18 m/s∴ 18 km/h = 18 × 5/18 = 5 m/sBy substituting the given values, we get➝ Vmax = √(μrg)➝ Vmax = √(0.1 × 0.03 × 10)➝ Vmax = √(0.03)➝ Vmax = 0.17 m/sATQ, speed of cyclist is 5 m/s.V > Vmax∴ Cyclist will slip while taking the turn.

Bohr MODEL DERIVES a RADIUS of NTH orbit

your ANSWER is OPTIONS AEXPLANATION:i HOPE it will HELP you ❤❤

Friction is a force that resists the relative motion between two objects or materials. The causes of the resistive force of friction are: Molecular Adhesion.  surface ROUGHNESS .                                                                                   Methods for decreasing friction: Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction. Lubrication is another way to make a surface smoother. ... Make the object more streamlined. ... Reduce the forces acting on the surfaces. ... Reduce the contact between the surfaces.                                      Friction can be a useful force because it prevents our shoes slipping on the pavement when we WALK and stops car tyres SKIDDING on the road. When you walk, friction is caused between the tread on shoes and the GROUND. This friction acts to grip the ground and prevent SLIDING. Sometimes we want to reduce friction.

massExplanation:★ velocity is a vector QUANTITY★ MOMENTUM is a vector quantity★ IMPLUSE is a vector quantity ★mass is a scalar quantityso,mass is the ANSWERMARK me as a BRAINLIEST

Explanation:Let R be the radius of Sun and d be the DISTANCE of earth from centre of Sun. Power radiated by Sun =σAT  4  =σ(4πR  2 )T  4  The power RADIATES out over a spherical surface. If we consider a sphere with radius = distance between Sun and earth with centre at centre of Sun, the power radiated by Sun is distributed over the surface of sphere. So power PER unit AREA (intensity) at location of earth's surface =  4πd  2  σ4πR  2 T  4  ​   =1400w/m  2  ⇒T  4 =  σ4πR  2  1400×4πd  2  ​    ⇒T  4 =  σR  2  1400×d  2  ​    ⇒T  4 =  (5.67×10  −8 )  2 (7×10  8 )  2  1400×(1.5×10  11 )  2  ​    ⇒T=(1.1337×10  15 )  4 1 ​      ⇒T=5801K

falseExplanation:Because R=R1xR2 UPON R1+R2 =3X1 upon 3+1 = 3 upon 4 and ANS is 4/3ohm

is in IMAGE GOOD LUCK for FUTURE

1.Newton metre is torque unit 2.Candela is luminious instensity 3.Radian is unit of MEASURE 4.hertz is unit of frequency 5.square metre is unit of AREA 6.telsa is unit of magnetic induction 7.ampere is unit of electric CURRENT 8.Kelvin is unit of TEMPERATURE 9.volt is unit of electric 10.mole is unit of amount of substance 11.coulomb is unit of electric CHARGE 12.farad is unit of capacitance 13.steradian is unit of solid angleExplanation:

d is correct. If we double each of them then we get 2 only. HENCE OPTION d is correct.Hope it helps you Mark me BRAINLIEST ...

tion:sorry BRO DONT know BROO

Design methods are procedures, TECHNIQUES, AIDS, or tools for DESIGNING. They offer a number of different kinds of activities that a designer might USE within an overall design process. Conventional procedures of design, such as drawing, can be regarded as design methods, but since the 1950s new procedures have been developed that are more usually grouped together under the name of "design methods". What design methods have in common is that they "are attempts to make public the HITHERTO private thinking of designers; to externalise the design process".[1]

Option 1 : 100 mExplanation:Given:Initial velocity = 0 m/sFinal velocity = 144 km/hr = 40 m/sTime taken = 5sTo Find:Distance coveredConcept:First we have to find the acceleration of the car. Substituting the data in the second or THIRD equation of motion we get the distance covered by the car.Solution:Initially we have to find the acceleration of the carBy the first equation of motion,v = u + atwhere v = FINAL velocity            u = initial velocity            a = acceleration            t = time takenSubstitute the data 40 = 0 + a × 55A = 40  a = 40/5  a = 8 m/s²Hence acceleration of the car is 8 m/s²Now we have to find the distance covered by the carBy the third equation of motion,v² - u² = 2aswhere v = final velocity            u = initial velocity            a = acceleration            s = distance coveredSubstituting the data,40² - 0² =  2 × 8 × s16s = 1600    s = 1600/16    s = 100 mHence the distance covered by the car is 100 mTherefore option 1 is correct.

now that Newton's second LAW is valid in an INERTIAL frame and the law states that, Linear momentum remains constant if net external force on the system of particles is zero. Hence, since F RESULTANT =0, we can say that momentum of system will not change with TIME.

The ACCELERATION of a CAR that MOVES with a constant VELOCITY 100kmph in astraight ROAD is 0Hope it helps ❤️

so what will i doExplanation:mazak banake RAKH DIYA HAI AAP KA

how you can CHECK Diode TerminalsIf a SYMBOL or MARK on the body of a diode showing its terminal polarity is missing or rubbed off, then the terminal's polarity can be determined with the HELP of an Ohm METER or Multimeter.

2. The VELOCITY of an object may be ZERO, but ACCELERATION is not zero.Explanation:hope it HELPS

The answer is OPTION A) INCREASE the FRICTION for BETTER GRIP

tion:Static friction is the force of friction between TWO stationary OBJECTS and kinetic friction is the force between two moving objects, and is USUALLY smaller than static friction....Coefficients of Friction for CONCRETE.smooth surfaces μstatic μkineticrubber on concrete (wet) 0.30 0.251 more row