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where is the fbd

It will be 0 as its in balanceOption-A

(1) zero -2-0-2- right answer

the right answer is= 0

2pi/100 Nm

Mass, m = 40kg

Radius, r = 1m

Angular velocity is, w = 120 rev/min = (120)(2π)/60 rad/s= 4π rad/s

MI of the ring is, I = mr²/2= (40)(1)2kg m2= 40 kg m2

Now, Angular momentum, L = Iw = (40)(4π) = 251.2 kg m2s-1

can you plss explain 2nd step where I=mr2/2

moment of inertia of a disc=mr²/2

then it will be 40×(1)2/2=20

r-30 par hoga of the year and

thanku

8N

, because sum will always be in between 10-6 = 4N to 10+6 = 16N

Net force acting on any one particle M=GM²/(2R)²+GM²/(R√2)²Cos45°+GM²/(R√2)²Cos45° M=GM²/R² [1/4+1/√2] This force will equal to centripetal force So,. Mv²/R=GM²/R²[1/4+1/√2] V=√[GM²/4R(1+2√2)] V=1/2√[GM/R(2√2+1)]

In classical mechanics, the gravitational potential at a location is equal to the work per unit mass that would be needed to move the object from a fixed reference location to the location of the object. It is analogous to the electric potential with mass playing the role of charge

asteroids,comets and meteors

the smallest planet is

Anastronomical objectorcelestial objectis a naturally occurringphysical entity, association, or structures that exists in theobservable universe.Inastronomy, the termsobjectandbodyare often used interchangeably. However, anastronomical bodyorcelestial bodyis a single, tightly bound, contiguous entity, while an astronomical or celestialobjectis a complex, less cohesively bound structure, which may consist of multiple bodies or even other objects with substructures.

[b] petroleum

because it is limited and it take 300 years to 350 years to make fossil fuel

since the rotation is 120 rpm jntead of 1200 in the solution, fhe correct option will be (b) 47.4m/s^2

R=30 ohms Stups are given 👆

yes the above solved is right

Cavendish

t= 10 seconds

S distance= 200 cm=2 metres

mass = 300 grams= 0.3 kilograms

Velocity=S/t=2/10=0.2 metre/ sec

initial velocity u= 0

Acceleration = (v-u)/t

⇒a=(0.2-0)/10

⇒a=0.02 metre/sec²

Now mass = 0.3 kg

So force=m×a

⇒F=0.3×0.02

⇒Force=0.006 Newtons.

Gravitational potential energychanges into kineticenergy. The equation forgravitational potential energyis GPE = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 on Earth), and h is the height above the ground in meters.

The unit vector is given by cross product of these vectors , divided by the magnitude of that vector.

the cross product is 14i+21j-42j so, the magnitude is √14²+21²+42² = 49

so the unit vector is.(14i+21j-42j)/49 = (2i+3j-6k)/7

option C.

The component of A along i+j (magnitude = √1²+1²=2)= (2i+3j)•(i+j)/√2= 5/√2

Velocity=72 kmh⁻¹=72×5/18=20 ms⁻¹Time taken=5 minutes=5×60=300 si) acceleration=(20/300) ms⁻²=0.067 ms⁻²ii)Distance=20×300=6000 m

It is wrong

Total internal reflection is the phenomenon which occurs when a propagated wave strikes a medium boundary at an angle larger than a particular critical angle with respect to the normal to the surface.

Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber. ... Optical fiber is used by many telecommunications companies to transmit telephone signals, Internet communication, and cable television signals.

Kindly post the complete question.

An electric dipole is a separation of positive and negative charges. The simplest example of this is a pair of electric charges of equal magnitude but opposite sign, separated by some It's SI unit is coulomb-metre.

ideal electric. dipole

The electric dipole moment is a measure of the separation of positive and negative electrical charges within a system The unit is coulomb-meter;p = qdthe magnitude of the charges multiplied by the distance between the two.

TheSI unitsforelectric dipole momentare coulomb-meter (C.m); however, the most commonunitis the debye (D). Theoretically, anelectric dipoleisdefinedby the first-order term of the multipole expansion; it consists of two equal and opposite charges that are infinitely close together