Compute the terminal velocity of rain drop of radius 0.3 mm take coefficient of viscosity of air= 1.83xx10^(-5) poise and density of air 1.3 kg m^(-3) Density of water= 10^3 kg m^(-3) and g =9.8m s^(-2)

At what maximum speed a racing car can travel through unbanked curve of radius 50m?The coefficient of friction between tyres of car and road surface is 0.5

Calculate the magnetic flux through each turn of a solenoid of self-inductance 8xx10^(-5) H, when a current of 3 A flows through it. Consider the solenoid has 1000 turns and is wound from wire of radius 0.5 mm. Find the cross-sectional area of the solenoid.

Current Flow and Mobility Find the current flow through a copper wire of length 0.2 m, area of cross-section 1 mm^(2) , when connected to a battery of 4 V. Given that electron mobility is 4.5 xx 10^(-6) m^(2) s^(-1) V^(-1) and charge on an electron is 1.6xx10^(-19) C. The number density of electron in copper wire is 8.5 xx 10^(28) m^(3) .

Young's modulus of the material of a wire is 9.8 x 10^10 N/m^2 and the area of cross-section of the wire is 0.012 cm^2 . Elastic limit of the material of the wire is exceeded when the strain exceeds 1/2400 . Find the maximum load that can be used to stretch the wire without causing a permanent set.

an air bubble of radius 1mm is allowed to rise through a long cylindrical column of a viscous liquid and travels at a steady rate of 2.1cm/s if the density of the liquid is 1.47gm/cc find its viscosity. Assume g=980cm/ s^2 and neglect the density of air.

A vessel, whose bottom has round holes with diameter of 0.1 mm, is filled with water. The maximum height to which the water can be filled without leakage is (S.T. of water = 75 dynes/cm, g = 1000 cm//s^2 )