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it it does not show large strain on small stress?

It shows large strain on small stress. That is what the green line in the graph is representing

if compared with junction diot of V and I the graph is different

V and I are potential and current right. This graph is for materials which are elastomers in property

yes.the defn are same but just replacing v and I .

then why graph different

I am not able to understand what you are asking. Are you saying potential - stress and current - strain are same?

I don't understand which is correct this or

I don't understand which is correct this or

this

Tell me which is correct

this

Tell me which is correct

this

Tell me which is correct

R^2 =A^2 +B^2 +2AB cosxR^2 =F^2+F^2 +2×F×F×cosxR^2=2F^2 (1+cosx)R^2 =2F^2(2cos^2 x/2)R=2F cos x/2d is correct option

P=√P^2+P^2+2P^2 cosxP^2=2P^2+2P^2cosxcosx=-1/2x=120

Let the force of smaller magnitude be A and the force of larger magnitude be B.

here,it is clearly given that the resultant force is R perpendicular to small force. hence, we can say that b is the hyopetenuse .

therefore, b² = R² + A²=> R² = b² - A²= 8²= 64 .......................... ( 1 ).

here, it is also given thatA + B = 16 therefore , B = 16 - A ..........................( 2 ).

Now, by substituting ( 2 ) in ( 1 ).we get,

( 16 - A ) ²- A² = 64=> 256 - 32A + A² - A² = 6432A = 256 - 64 = 192A = 192 / 32 = 6

hence, we get the resultB = 16 - A = 16 - 6 = 10

therefore, the magnitude of the two vectors are 6 and 10.

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solution=Pressure = Force/AreaHere, Force = 50 N Area = 0.25 m²Pressure = 50 N/0.25 m²= 200 N/m²is the correct answer

Pressure=Force/Area=50/0.25=200N/msquare

Pressure = Force/AreaPressure = 50/0.25Pressure = 5000/25Therefore, Pressure = 200 pa

SI unit of density is Kg/m³ 1 m = 100 cm => 1 cm = 10-² m 1 Kg = 1000g => 1g = 10-³ Kg

now, 13.6 g/cm³ = 13.6 × ( 10-³)/(10-²)³ Kg/m³

= 13.6 × 10-³/10^-6 Kg/m³

= 13.6 × 10^(-3 + 6) Kg/m³

= 13.6 × 10³ Kg/m³

ke2/r2= mv2/r

Where ke2/r2is the Coulomb's force and mv2/r is thecentripetalforce of the electron around the nucleus

you know from Bohr's postulate

mvr = nh/2π

Combine the two equations. What is the value of the radius of the first orbit ?

r=

Plank's constant h= 6.624 10-34Js

electron mass me= 9.11 10-31Kg

electron charge e= -1.6 10-19C

Coulomb's constant k=8.99 109m2N/C2

ke2/r2= mv2/r

3rdBohr's postulate

mvr = nh/2Π

v = nh/2Πmr

ke2/r2= mn2h2/r4Πm2r2

r = n2h2/k4Π2me2

r = 0.53 Angstrom

500n is the correct answer

SI unit of density is Kg/m³ 1 m = 100 cm => 1 cm = 10-² m 1 Kg = 1000g => 1g = 10-³ Kg

now, 13.6 g/cm³ = 13.6 × ( 10-³)/(10-²)³ Kg/m³

= 13.6 × 10-³/10^-6 Kg/m³

= 13.6 × 10^(-3 + 6) Kg/m³

= 13.6 × 10³ Kg/m³

When a body is immersed in a liquid, the upthrust isF =ρvg

here;liquid is water, soρ=1000 kg/m³volume, v = 200 cm³ = 200×10⁻⁶ m³g = 9.8 m/s²

Upthrust, F =ρvg = 10³× (200×10⁻⁶)× 9.8 = 1.96N

Option (C) is the correct answer.

stethoscope is the odd one among them because all other three are musical instruments but it is a medical instrument

the frequency of tuning fork is 480Hz

so, in 1 sec it vibrates 480 times

in 120 vibrations the time taken will be 120/480 = 1/4sec

now, distance is = velocity*time = 320*(1/4) = 80m

option 1

F.S8+18+15=41👍👍👍👍👍👍👍👍👍

Mass of ball = 1 kg

initial speed = 15m/s

final speed = -10 m/s ( because it rebounds elastically)

Change in momentum= mv - mu

=> ∆P = 01×(-10) - 1×15

=>∆P = -25 kg.m/s

Given that contact time = 0.1s

force = ∆P/t = -10/0.1 = -100 N

weight of truck=500,000Narea of tyre in contact with ground=0.4m^2pressure exerted=500,000/0.4 =12,50,000

The most common reason for providing bracing on a steel-concrete composite bridge is for the control of buckling in the main beams during construction. In an unrestrained beam, the compression flanges of the main beams tend to buckle horizontally, causing the beam to twist – so called lateral torsional buckling.

Is there any value for time given?

Ok this problem ca be solved if time T is assumed to be 2s

1/6 x 9.8 x 2^2/4 pi ^2

W = F × S, where, W is the work done, F is the force applied and ‘S’ is the displacement in the direction of force.

This is a question on momentum.

By law of conservation of linear momentum:

Initial momentum = Final momentum

Momentum = mass × velocity

Initial momentum:For the person = 0 × 6 = 0

Let v be the velocity of the particle and m the mass of the particle.

Its momentum = mv

Final momentum The final speed = 1/3 × 6 = 2

Final momentum = (m + 6)2

= 2m + 12

Equating the two2m + 12 = vm

Vm - 2m = 12

M (v - 2) = 12

m = 12/(v - 2) kg

Coulomb's law states that: The magnitude of the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them. The force is along the straight line joining them.

It is a dimensionless numbercomprised of the physical characteristics of the flow. An increasing Reynolds number indicates an increasing turbulence of flow.V is the flow velocity,D is acharacteristic linear dimension, (travelled length of the fluid;hydraulic diameteretc.)ρ fluid density(kg/m3),μ dynamic viscosity (Pa.s),ν kinematic viscosity (m2/s); ν = μ / ρ.

Neurons (nerve cells) have three parts thatcarry outthefunctionsof communication and integration: dendrites, axons, and axon terminals. They have a fourth part thecell body or soma, which carriesoutthe basic life processes of neurons.

Nerve cells serve an important function in our bodies to relay information as electrical signals from the periphery to the central nervous system. Nerve cells are also called 'neurons' andcan be as long as 3 feet. Nerve cells are composed of tiny branches called dendrons which branch into further even smaller extensions called dendrites. They also have a nucleus surrounded by cytoplasm, a cell membrane and an axon. The axon is a long fibre that is coated or insulated in a fatty sheath made out of a substance called myelin. This insulation is what adapts the neuron to carry electrical impulses from one place in the body to another.

The structure of each type of human cell depends on what function it will perform in the body. A direct relationship exists between the size and shape of every cell and the tasks it needs to accomplish.Neurons carry messages from the brain and spinal cord to the rest of the body, using electrical signals down their lengths and chemical signals between neurons. Since electrical signals travel much faster than chemical signals, neurons are long and thin to minimize the number of slower chemical signals that would be required between links in a chain of many shorter neurons.

Work done in carrying a charge Q through a potential difference V is given as

Also, Q = I t

Using Ohm's law, V = IR

W = I2RtThis work done in carrying the charge through the wire appears as the heat produced. i.e.,

H = VIt = I2Rt.

this energy is dissipated as heat energy.

This relationship is also known as Joule's Law of Heating

Fee fall is any motion of a body where gravity is the only force acting upon it. Thus, falling through an atmosphere without a deployed parachute, or lifting device, is also often referred to as free fall.Theaccelerationwhich is gained by an object becauseofthe gravitational force is called itsacceleration due to gravity. Its SI unit is m/s2.

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SI unit of entropy is Joule/Kelvin

thanks

The answer to this question depends on the situation. We can roughly classify all electrical systems into two categories: static electricity systems and circuit electricity systems. Note that all electrical effects are actually part of one unified set of physical laws. This classification is therefore ultimately arbitrary and over-simplified. However, this classification is sufficient for our current purpose of understanding electric current.

Public Domain Image, source: NOAA.A static electricity system involves the flow of electric current as a result of a buildup of electric charge somewhere. Such a system does not involve a closed electrical circuit. Examples of this type of system include lightning and the sparks you get when you rub your feet on a carpet. Electrons naturally repel each other. When a lot of electrons get piled up in one place, they can push on each other so strongly that some of the electrons get pushed right off of the object. They end up getting pushed out through the air, the water, or whatever surrounds the object. We call a collection of moving electrons an electric current, therefore a buildup of charge can drive a current. The electrons simply flow away from the pile and ultimately end up attached to atoms in the environment. In this way, we can have an electric current even if we don't have a complete electrical circuit. In air, an electrical current takes the form of dark discharge, corona discharge, or sparks (depending on if the current is weak, medium strength, or strong, respectively). Note that the name "static electricity" is a poor name since the electric charge is not always stationary in this type of system. More accurate names would be "non-circuit electricity" or "charge buildup electricity."

U = C/v

So, vg = C/ugvw = C/uw

Vw - vg = C/uw - C/ug

2.7 * 10^7 = C(3/4 - 2/3)

2.7 * 10^7 = C(9 - 8)/12

2.7 * 10^7 = C/12

C = 12*2.7*10^7

C = 3.24 * 10^8 m/s

3*10^8 OK that is a answer

In statistical mechanics, entropy is an extensive property of a thermodynamic system. The second law of thermodynamics states that the entropy of an isolated system never decreases. Such systems spontaneously evolve towards thermodynamic equilibrium, the state with maximum entropy.

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