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power = 500 W =0.5 kWtime = 10 hpower = energy / time0.5 = E/100.5 * 10 = E E =5 kWhnow ,energy consumed by 4 machines = 4 * 5 = 20 units

Option (c) is correct.

भोपाल. राजधानी के सबसे व्यस्ततम चेतक ब्रिज को सिक्स लेन में किए जाने की राह आसान हो गई है।

Its in BHopalbuilt in 1975

Nanotechnology in Medicine Application: 1)Drug DeliveryFor example, nanoparticles thatdeliver chemotherapy drugs directly to cancer cellsare under development.

2)Therapy Techniques

Researchers have developed "nanosponges" that absorb toxins and remove them from the bloodstream. Thenanospongesare polymer nanoparticles coated with a red blood cell membrane. The red blood cell membrane allows the nanosponges to travel freely in the bloodstream and attract the toxins.

3) Diagnostic Techniques

Researchers at Worcester Polytechnic Institute are usingantibodies attached to carbon nanotubesin chips to detect cancer cells in the blood stream. The researchers believe this method could be used in simple lab tests that could provide early detection of cancer cells in the

4)Anti-Microbial Techniques

Researchers at the University of Houston are developing a technique to kill bacteria usinggold nanoparticles and infrared light. This method may lead to improved cleaning of instruments in hospital settings.

5)Cell Repair

Nanorobots could actually be programmed to repair specific diseased cells, functioning in a similar way to antibodies in our natural healing processes.

1)Solution:Therateof consumption of electricenergyin an electric appliance is called electric power. Hence, therate at which energy is delivered by a currentis the power of the appliance.

2)p= VxI=220x5=1100wSo ,in 2hour=2x1100=2200w

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Ans :- SHM : Simple Harmonic Motion

In mechanics and physics, simple harmonic motion is a special type of periodic motion or oscillation motion where the restoring force is directly proportional to the displacement and acts in the direction opposite to that of displacement. The motion is sinusoidal in time and demonstrates a single resonant frequency.

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Velocity is distance per unit time. We can obtain the expression for velocity using the expression for acceleration.Let’s see how. Accelerationd2x/dt2= dv/dt = dv/dx× dx/dt. But dx/dt = velocity ‘v’

Therefore, acceleration = v(dv/dx) (II)

When we substitute equation II in equation I, we get,v(dv/dx) = – ω2x.

∴ vdv =– ω2xdx

After integrating both sides, we get,

∫vdv =∫-ω2xdx = -ω2∫xdx

Hence, v2/2 =-ω2x2/2 + C where C is the constant of integration. Now, to find the vaue of C, lets consider boundary value condition. When a particle performing SHM is at the extreme position, displacement of the particle is maximum and velocity is zero. (a is the amplitude of SHM)

Therefore, At x=± a, v= 0

And 0 =– ω2a2/2 + C

Hence, C =ω2a2/2

Let’s substitute this value of C in equationv2/2 =-ω2x2/2 + C

∴ v2/2 =-ω2x2/2 +ω2a2/2

∴ v2= ω2 (a2–x2)

Taking square root on both sides, we get,

v =± ω√(a2–x2) (III)

Equation III is the expression of the velocity of S.H.M. The double sign indicates that when a particle passes through a given point in the positive direction ofx, v is positive, and when it passes through the same point in opposite direction ofx, v is negative

so velocity is zero when the displacement is maximum

the correct answer is 1/√3 .

the answer is 1/root 3

Linear Simple Harmonic Motion(S.H.M.) The periodic to and fro motion on a straight line about a fixed point (called mean or equilibrium position) under the force always directed towards the mean position, and proportional to the distance from the mean position is calledLinear S.H.M.

सूर्योदय देहावसान इत्यादि

NaNanotechnology is science, engineering, and technologyconductedat the nanoscale, which is about 1 to 100 nanometers.

Physicist Richard Feynman, the father of nanotechnology.

Nanoscience and nanotechnology are the study and application of extremely small things and can be used across all the other science fields, such as chemistry, biology, physics, materials science, and engineering.

The least distant vision for an normal eye is 25 cm.

A-B 0.6m/Sb-c. 0m/sc-d 0.25m/s

A) 6 TimesIts so because we will use formula for finding capacitance when t=d

Given the fundamentalunits of length,velocity and force are doubled.⇒Length Dimensions are =L

⇒V=Displacement /TimeVelocity Dimensions= LT^⁻¹In order to make velocity double , already length is doubled.So no change in Time.

⇒Force=maForce dimensions=MLT^⁻²already length is doubled to make force double .So no change will be there in mass . It will be constant.

⇒But momentum will changeAs Momentum=mxVMomentum units =MLT^⁻¹so here mass and time are constant. So L is doubled. Momentum will doubleEnergy will become four timesEnergy dimensions=ML^²T^⁻²As length doubles, energy becomes 4 times.

So correct option is 3 :MOMENTUM WILL DOUBLE

1)The Reason for this is simple:-

Whenever an object revolves in a circular path it experiences two forces,

CENTRIPETAL FORCECENTRIFUGAL FORCENow the Centripetal Force is directed inside and pulls the object towards the center but,

Its the CENTRFUGAL Force that pulls the object away form the center.

Therefore, Because of the Centrifugal Force, we fall outward .

When a bucket full of water is just lifted up and inverted, the water in the bucket is strongly pulled by gravity of the earth’s surface where as there is no normal force below as there is no surface to limit fall of the water and hence it falls

When you rotate the water in the vertical circle, you are pushing the water away from your hand, towards the base of bucket by a force which is directed away from your hand.

This force, when balances the force of gravity, the water would just be in the bucket. But when you whirl the bucket, this outward force named asCentrifugal forceovercomes pull of gravity and pushes the water to the end of bucket away from the open mouth of bucket. Such that it do not drop from the open end of bucket

5N is the right answer

your answer is wrong according to given solutions

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George Simon Ohm stated the Ohm’s law. He stated that the electric current flowing through a wire will be directly proportional to the potential difference across the ends only when the temperature remains constant. That constant is the resistance. V = I R

As per ohm’s law voltage / current = a constant. The resistance of a material changes when the temperature changes. So when the resistance changes, the ratio of the voltage across the resistor and the current passing through it will not be a constant. We will not get the same numbers always.

Non – linear elements and unilateral networks do not support ohm’s law. Examples are diodes, transistor etc. The conductors which does not obey ohm’s law is calledNon – Ohmic Conductors. Incandescent bulb do not support ohm’s law.

Ohm’s law states that the current through a conductor between two points is directly proportional to the voltage across the two points. Electrical current (I) flowing in an circuit is proportional to the voltage (V) and inversely proportional to the resistance (R). Therefore, if the voltage is increased, the current will increase provided the resistance of the circuit does not change.

Ohm’s Law FormulaVoltage= Current× ResistanceV= I×RV= voltage, I= current and R= resistance

The SI unit of resistance is ohms

Ohm’s law states that the voltage or potential difference between two points is directly proportional to the current or electricity passing through the resistance, and inversely proportional to the resistance of the circuit. The formula for Ohm’s law isV=I/R. This relationship between current, voltage, and relationship was discovered by German scientist Georg Simon Ohm. Let us learn more about Ohms Law, Resistance, and its applications.

Ohm's law states that the electrical current (I) flowing in an circuit is proportional to the voltage (V) and inversely proportional to the resistance (R). Therefore, if the voltage is increased, the current will increase provided the resistance of the circuit does not change. Similarly, increasing the resistance of the circuit will lower the current flow if the voltage is not changed.I=V/RI =Electrical Current (Amperes)V =Voltage (Voltage)R =Resistance (Ohms)

If kinetic energy becomes twice its original value, the momentum becomes √2 times its original value because momentum is directly proportional to the square root of its kinetic energy.

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a form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current.

Electricity is the flow of charges.fundamental form of energy observable in positive and negative forms that occurs naturally.

Gauss's law in electrostatics states that the totalelectricflux through a closed surface is equal to the netelectriccharge enclosed by the surface divided by permittivity.

The configuration of charge inside the closed surface doesn't matter and charge placed outside the closed surface doesn't contribute to the flux passing through the surface. Yes even the shape of the Gaussian surface is irrelevant .

11. Current12.I=V/R=2A.13. Ohms14. I=V/R Current will be halved.15. V=IR

Momentum p = √(2*kinetic energy*mass)=> p2/p1= √(2/1)=> p2/p1 = √2=> Momentum becomes √2 times the original value.

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please give detailed explanation

Light energy/ solar energy

electrical energy is provided from electricity in the form of energy

In the form of electrical energy

VOLT -Aunit ofelectrical pressure(or electromotive force) which causes current to flow inacircuit. One volt is the amount ofpressurerequired to cause one ampere of current to flow against one ohm ofresistance. VOLTAGE - That force which is generated to cause current to flow in anelectricalcircuit.

∆U=initial energy - final energy1/2C (V1 - V2) -1/2(2C)(V1 -V2/2)=1/4C (V1^2 -V2^2).= (V1²-V2²)/4C