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Catalogs Discussion Forums -> Mechanics -> wave motion -> Go to message
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A transverse periodic wave on a string with a linear density of 0.200 kg/m is described by the following equation: y = 0.005 sin(419t ? 21.0x), where x and y are in meters and t is in seconds. What is the tension in the string?
Catalogs Discussion Forums -> Algebra -> permutations and combinations -> Go to message
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number of six digit numbers which have 3 digits even & 3 digits odd ,if each digit is to be used at most once
Catalogs Discussion Forums -> Analytical Geometry -> straight line -> Go to message
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L1 and L2 are fixed perpendicular lines, p is a variable point in the plane such that the sum of the distances of p from L1 and L2 is 3 .the area enclosed by the locus of p is
Catalogs Discussion Forums -> Physical Chemistry -> chemical energetics -> Go to message
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heat of combustion of CH4,C2H4,C2H6 are -890,-1411 and -1560 kJ/mol respectively .which has lowest calorific fuel value in kJ/g
Catalogs Discussion Forums -> Physical Chemistry -> chemical energetics -> Go to message
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the enthalpy of neutralisation of the given reaction ---H2SO4 + 2NaOH ---->Na2SO4+2H2O+ykcal is
Catalogs Discussion Forums -> Physical Chemistry -> chemical energetic -> Go to message
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in which case of mixing of a strong acid and a base each of 1 N concentration ,temperature increases highest . A-20ml acid-30mlalkaliB-10mlacid-40mlalkaliC-25mlacid-25alkaliD-35mlacid-15mlalkali
Catalogs Discussion Forums -> Physical Chemistry -> chemical energetics -> Go to message
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Catalogs Discussion Forums -> Physical Chemistry -> chemical energetics -> Go to message
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the increase in internal energy of 1 kg of water att 100dgree celsius when it is converted into steam at same temperature and at 1 atm (100kpa ) will be (the density of water and steam are 1000kg/m^3 & 0.6kg/m^3 respectively) .the latent heat of vapourisation of water is 2.25 x10^6j/kg)
Catalogs Discussion Forums -> Physical Chemistry -> chemical energetics -> Go to message
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the internal energy of a monoatomic ideal gas is 1.5nRT.1 mole of helium is kept in a cylinder of cross section 8.5 cm^2.he cylinder is closed by a light frictionless piston .he gas is heated slowly in a process during which total of 42 J heat the is given to the gas.if temperature rises through 2 dgree celsius,the distance moved by the piston is (atmospheric pressure being 100kpa)
Catalogs Discussion Forums -> Physical Chemistry -> chemical energetics -> Go to message
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consider a classroom that is roughly 5m x 10m x 3m. initially at=20 degree celsius and p= 1atm .there are 50 people in an insulated class losing energy to the room at the average rate of 150 watt per person .how long can hey remain in class if the body temperature is 37 degree celsius and person feels uncomfortable above this temperature.heat capacity of air =(7/2 R).
Catalogs Discussion Forums -> Physical Chemistry -> chemical energetics -> Go to message
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Catalogs Discussion Forums -> Physical Chemistry -> when equal volume of 0.01 M HCl and 0.02 M HNO3 are mixed pH of he final solution will be -> Go to message
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when equal volume of 0.01 M HCl and 0.02 M HNO3 are mixed pH of he final solution will be
Catalogs Discussion Forums -> Mechanics -> fluid mechanics -> Go to message
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pressure 3m below the free surface of a liquid is 15KN/m^2in excess of atmosphere.determine density and specific gravity.(g=10)
Catalogs Discussion Forums -> Electricity -> capacitor -> Go to message
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what is the formula for dielectric having thickness t for capaciance
Catalogs Discussion Forums -> Electricity -> capacitor -> Go to message
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how to solve when there are two dielectric in parallel between the capacitor
Catalogs Discussion Forums -> Trignometry -> max val -> Go to message
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cos(A+B)=cosAcosB-sinAsinBsinA=underoot 1-cos^2A ans-1.76
Catalogs Discussion Forums -> Vectors -> vectors -> Go to message
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X = lambda*A+ mew* B what is the meaning of this expressionx,A & B are vectors
Catalogs Discussion Forums -> Magnetism -> magnetism -> Go to message
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if current carrying loop is going away from current carrying wire (current direction is from down to up) what will be the direction of magneic field on left and right side
Catalogs Discussion Forums -> Magnetism -> magnetism -> Go to message
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Magnetic field lines can be entirely confined within the core of a toroid, but not within a straight solenoid. Why?
Catalogs Discussion Forums -> Algebra -> probability -> Go to message
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how many six digit no. can be form without repition odd no. at odd place ,even no. at even place which is divisible by 4
 
 
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