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d quantum DERIVES from the Latin, meaning "how great" or "how MUCH". ... The discovery that particles are discrete packets of energy with wave-like properties led to the BRANCH of physicsdealing with ATOMIC and subatomic systems which is today called quantum mechanics.

cause we need the MAX. pressure the AREA should be LEAST so the least area can be 4*3=12 cm^2F=mg, F=5*9.8=49 NP=49/12=4.083 Pa

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:Work done = INCREASE in KINETIC energy                    = 1/2 m v² - 1/2 m u²                    = 1/2 m ( v² - u² )Given :MASS = 1500 KGV = 72 km/hru = 36 km/hrWork = 1/2 m ( v² - u² )          = 1/2 × 1500 × ( 72² - 36² )          = 750 × ( 72 + 36 )( 72 - 36 )          = 750 × 108 × 36          = 750 × 3888          = 2916000          = 2.916 × 10⁶ANSWER:The work done is 2.916 × 10⁶

aw states the following :The voltage across the conductors is directly proportional to the current flowing in the conductor provided that the temperature and the pressure REMAINS constant .V ∝ INow we remove the sign of ∝ with = by PROVIDING a constant.This constant is R or RESISTANCE .V = I RThis is the formula for Ohm's law.There are conductors that follow this law . They are CALLED Ohmic conductors.The rest which do not follow are called Non-Ohmic conductors.Look at the beautiful attachment .

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an SOLVE the VELOCITY and DECREASE the VALUE of the NUMBER

ans having same origin and basic structure but they perform different FUNCTIONS in various organisms.eg. FORELIMBS of HORSE and ARMS of MAN

fferentiate the EQUATION, you will get a RELATION in terms of v, PUT that as 0 and you will get your answer.

n :-NAME the semiconductor DEVICE that can be used as a voltage regulator .Answer :-The device used is called ZENER diode .Zener diode helps to MAINTAIN constant voltage across the conductors and hence it is a good idea to use it.More about Zener diode :O It is efficient for flow of current in one direction.O They are used in SEVERAL electronic devices.O They are very economical.O They are used to protect the circuit from high voltage.

/2mv2mass=400/1000=0.4kgvelocity =2m/skinetic ENERGY =0.4×2×2/2k.e=0.8 JOULE here is UR ANSWER

The length of rod = 8 m .A weight of 10 kg is put at A.Fulcrum is 3 m away from B .LET the weight of load at B be x .Distance of A from fulcrum = 8 m - 3 m                                              = 5 mBy PRINCIPLE of moments :Sum of clockwise moments = sum of anti-clockwise moments .HENCE we can write that :5 m × 10 kg = x × 3 m= > 50 kg m = 3 x m= > 3 x = 50 kg= > x = 50/3 kg= > x = 16.666 kg= > x = 16.67 kgANSWER :The load at B would be 16.67 kg

3t^2+2s=16-12+2=6v=ds/dt= 6t^2-6tv=24-12=12a=dv/dt = 12t-6a=24-6=18

probably familiar with friction, the force that resists MOTION between two surfaces. In everyday life we tend to think of friction as a bad thing. After all, it's what makes it so hard to drag a couch across a room. EVEN outside the realm of physics, the word has a negative connotation (in terms of interpersonal relationships, it means "disagreement").However, if you're ever lost in the WILDERNESS and in need of fire for survival, you'll THANK your lucky stars for friction. You may have HEARD that rubbing two sticks together can start a fire, but we're going to investigate the physics of how that really happens. Mark me barinliest

ular VELOCITY is independent of the CLOCK size, however for larger CLOCKS the linear velocity of the pointers at the end of the hands will be greater. The SECOND hand goes through 2π RADIANS in 1 min, or 2π radian/60 seconds, so ω = π/30 rad.s-1 = 0.03 rad.s-1.

Latm/mol/calvin

ion transfers heat through material directly, through contact. Thanks to physics, we know that conduction is affected by temperature difference, the area of conduction, the distance the heat must travel, and the amount of time that passes.Take a look at the metal pot in the figure and its metal handle; the pot has been boiling for 15 minutes. Would you WANT to lift it off the fire by grabbing the handle without an oven MITT? Probably not. The handle is hot because of conduction of heat through the metal handle.On the molecular level, the molecules near the heat source are heated and begin vibrating faster. They bounce off nearby molecules and cause them to vibrate faster. That increased bouncing is what heats a substance.You have to take different properties of objects into account when you want to examine the conduction that takes place. If you have a bar of STEEL, for example, you have to consider the bar’s cross-sectional area and LENGTH, along with the temperature at different parts of the bar.Take a look at the second figure, where a bar of steel is being heated on one end and the heat is traveling by conduction toward the other side. Can you find out the thermal energy transferred? No problem.

tics, dispersion is the phenomenon in which the phase VELOCITY of a wave depends on its frequency. Media having this common PROPERTY may be termed dispersive media. Sometimes the term chromatic dispersion is used for specificity●Lateral inversion" means the apparent reversal of the mirror IMAGE's left and right when compared with the OBJECT. "Lateral" just means "sideways". ... In a plane mirror, each point on the image is as FAR behind the mirror plane as the corresponding point on the object is in front.

The object having the greatest MASS has the greatest INERTIA. THUS mass is the MEASURE of inertia.

age ERROR = 10 %Real value = 70.5ERROR = Real Value - Measured valueMeasure value = Real value - ErrorMeasured value = 70.5 - 10 %Measured value = 70.5 - 10 / 100Measured value = 70.5 - 1/ 10 = 704 / 10

erstorm is a storm with LIGHTNING and thunder. Its produced by a cumulonimbus CLOUD, usually producing gusty winds, heavy rain and sometimes hail. The basic ingredients used to make a THUNDERSTORM are MOISTURE, unstable air and lift. ... You need unstable air that is relatively warm and can rise rapidly.

s not SINCE it only CHANGES its direc but not MAGNITUDE

fting of ZERO of the scale at DIFFERENT points as well as the stray RESISTANCE give rise to the end error INMETER bridge wire. This error arise due to the non uniformity of the meter wireEnd corrections can be estimated by including known resistances P1 and Q1 in the two ends and finding the null point.

of IMAGE is -3 cmDistance of image from LENS is -24 CM

DataMean distance from Sun:0.387 AU = 5.79x107kmMaximum distance from Sun:0.467 AU=6.98x107kmMinimum distance from Sun:0.307 AU=4.60x107Mean orbital velocity:47.4 km/sSiderial period:87.969 daysRotation period:58.646 daysInclination of equator to orbit:0°Inclination of orbit to ecliptic:7°00'16"Orbital eccentricity:0.206Diameter(equatorial):4878 kmDiameter (Earth = 1):0.382Apparent diameter from Earth:Max:12.9"Apparent diameter from Earth:Min:4.5"Mass:3.3x1023 kgMass(Earth=1):0.055Mean density5427 kg/m3Surface gravity (Earth = 1)0.38Escape velocity4.3 km/sOblateness0Mean surface temperature:day350°C=662°F=623KMean surface temperature:night-170°C=-274°F=103KAlbedo0.1Brightest magnitude-1.9Mean diameter of Sun from Mercury1°22'40"MercuryVenusEarthMarsJupiterSaturnUranusNeptunePlutoComparison TableData from KaufmannIndexSolar System IllustrationSolar System Concepts HyperPhysics********** AstrophysicsR NaveGo BackVenus DataMean distance from Sun:0.723 AU = 1.082x108 kmMaximum distance from Sun:0.728 AU=1.089x108 kmMinimum distance from Sun:0.718 AU=1.075x108 kmMean orbital velocity:35.0 km/sSiderial period:224.70 daysRotation period:243.01 daysRetrogradeInclination of equator to orbit:177.4°Inclination of orbit to ecliptic:3°23'40"Orbital eccentricity:0.007Diameter(equatorial):12,104 kmDiameter (Earth = 1):0.949Apparent diameter from Earth:Max:65.2"Apparent diameter from Earth:Min:9.5"Mass:4.87x1024 kgMass(Earth=1):0.8150Mean density5240 kg/m3Surface gravity (Earth = 1)0.903Escape velocity10.4 km/sOblateness0Mean surface temperature480°C=900°F=750KAlbedo0.65Brightest magnitude-4.4Mean diameter of Sun from Venus44'15"MercuryVenusEarthMarsJupiterSaturnUranusNeptunePlutoComparison TableData from KaufmannIndexSolar System IllustrationSolar System Concepts HyperPhysics********** AstrophysicsR NaveGo BackEarth DataMean distance from Sun:1.000 AU = 1.496x108 kmMaximum distance from Sun:1.017 AU=1.521x108 kmMinimum distance from Sun:0.983 AU=1.471x108 kmMean orbital velocity:29.8 km/sSiderial period:365.256 daysRotation period:23.9345 hoursInclination of equator to orbit:23° 27'Inclination of orbit to ecliptic:0°Orbital eccentricity:0.0167Diameter(equatorial):12,756 kmMass:5.976x1024 kgMean density5500 kg/m3Escape velocity11.2 km/sOblateness0.0034Mean surface temperature20°C=68°F=293KSurface temperature:max60°C=140°F=333KSurface temperature:min-90°C=-130°F=183KAlbedo*0.39Brightest magnitude-1.9Mean diameter of Sun from Earth0°32'MercuryVenusEarthMarsJupiterSaturnUranusNeptunePlutoComparison TableData from Kaufmann*Albedo is the fraction of light reflected from an object.Additional DATA:Acceleration of gravity on surface of earth9.8 m/s2Range on earth's surface about9.77 to 9.83 m/s2Air Density, standard1.29 kg/m3Average MOLECULAR mass.0289 kg/moleAt STP a mole of air occupies22.4 liters = .0224 m3One cubic meter of air contains44.64 molesComposition of dry airComponentPercentagePartial pressure(MMHG)Nitrogen78.08593.4Oxygen20.95159.2Argon0.937.1Carbon dioxide.030.2Elements in Earth's crustMagnetic fieldIndexSolar System IllustrationSolar System Concepts HyperPhysics********** AstrophysicsR NaveGo BackMars DataMean distance from Sun:1.524 AU = 2.279x108 kmMaximum distance from Sun:1.666 AU=2.491x108kmMinimum distance from Sun:1.382 AU=2.067x108kmMean orbital velocity:24.1 km/sSiderial period:686.98 days1.88 yrsRotation period:24hr 37m 23sInclination of equator to orbit:25° 11'Inclination of orbit to ecliptic:1°50'59"Orbital eccentricity:0.093Diameter(equatorial):6794 kmDiameter (Earth = 1):0.532Apparent diameter from Earth:Max:25.7"Apparent diameter from Earth:Min:3.5"Mass:6.42x1023 kgMass(Earth=1):0.107Mean density3940 kg/m3Surface gravity (Earth = 1)0.380Escape velocity5.0 km/sOblateness0.006Surface temperature:max20°C=68°F=293KSurface temperature:min-140°C=-220°F=133KAlbedo0.15Brightest magnitude-2.0Mean diameter of Sun from Mars21'MercuryVenusEarthMarsJupiterSaturnUranusNeptunePlutoComparison TableData from KaufmannIndexSolar System IllustrationSolar System Concepts HyperPhysics********** AstrophysicsR NaveGo BackJupiter DataMean distance from Sun:5.203 AU = 7.786x108 kmMaximum distance from Sun:5.455 AU=8.157x108kmMinimum distance from Sun:4.951 AU=7.409x108kmMean orbital velocity:13.1 km/sSiderial period:11.86 yrRotation period:9hr 50m 30sequatorialInclination of equator to orbit:3° 04'Inclination of orbit to ecliptic:1°18'Orbital eccentricity:0.048Diameter(equatorial):142,984 km133,500 km polarDiameter (Earth = 1):11.1910.47 polarApparent diameter from Earth:Max:50.1"Apparent diameter from Earth:Min:30.4"Mass:1.90x1027 kgMass(Earth=1):317.8Mean density1326 kg/m3Surface gravity (Earth = 1)2.53Escape velocity59.5 km/sOblateness0.065Mean surface temperature:cloudtops-110°C=-166°F=163KAlbedo0.52Brightest magnitude-2.7Mean diameter of Sun from Jupiter6'09

etic energy of 100 g mas=½*(0.1)*(2)²=0.2 JUsing conservation of momentum(0.1)*2+(0.2)*1=(0.2+0.1)vSolving the EQUATION v=1.33Final kinetic energy of 100 g mas=½(0.1)(1.33)²=0.089 JHence loss in kinetic energy would be =0.2- 0.089=0.11 J

is WOULD HELP you.

―Indian style of COOLING drinking WATER is to keep in a picher having POROUS walls water COMES out surface very SLOWLY and evaporates most of the energy needed for evaporatiomthanks

―A piece of metal weighs 100 gm in air and 80 gm in a LIQUID. If the RELATIVE density of the liquid is 0.8 , then the relative density of metal isThanks.....hope it HELPS

―A PERSON was FINED for exceeding the speed LIMIT by 10 km/hr. Another person was also fined for exceeding the same speed limit by twice the same. If the SECOND person was traveling at a speed of 35km/hr,find the speed limit.KThanks

re's the ans. ...Heat is a form of ENERGY..KINETIC theory explains the phenomena of heat as the vibration of molecules/atoms of the material. So technically heat is vibrational energy at molecular level..Heat is often accompanied by radiation energy(light) which is release of photons from these vibrating molecules..Heat energy is always accompanied by increase in entropy. This means the ENTIRE energy in the form of heat can never be EXTRACTED. Never..Energy is a very weird term (in my opinion all of fundamental physics is :D)..HOPE it helps

entripetal acceleration=vsquare/radiusv=vnotradius=rvnotsquare/radius

―A PARTICLE released vertically at a velocity 20m/s FIND the time when distance is DOUBLE the displacementThanks