નળાકાર જહાજના પાયાનો વિસ્તાર 300 સેમી^(2) છે. પાણી (ઘનતા=1000 kg m^(-3)) રેડવામાં આવે છે...

At What velocity does water emerge from an orifice in a tank in which gauge pressure is 3 xx 10^(5) Nm^(-2) before the flow starts ? (Take the density of water =1000 kg m^(-3) .)

Find the change in the internal energy of 2 kg of water as it heated from 0^(0)C to 4^(0)C . The specific heat capacity of water is 4200 J kg^(-1) K^(-1) and its densities at 0^(0)C and 4^(0)C are 999.9 kg m^(-3) and 1000 kg m^(-3) respectively. atmospheric pressure =10^(5) Pa.

A layer of ice 29 cm thick has formed on a pond. The temperature of air is -10^(@)C . Find how long will it take for another 0.1 cm layer of water to freeze? Conductivity of ice = 2.1 J s^(-1)m^(-1)K^(-1) . Latent heat capacity of ice =3.36 xx 10^(5) J kg^(-1) and density of ice = 1000 kg m^(-3) .

Water (p = 1000 kg/ m^(3) ) and kerosene (a = 800kg/ m^(3) ) are filled in two identical cylindrical vessels. Both vessels have small holes at their bottom. The speed of the water and kerosene coming out of their holes are v_(1) and v_(2) respectively. Select the correct alternative

A canal lock gate is 4 m broad and the depth of water on opposite side of the gate are 5m and 2m . Find the resultant thrust on the gate and the torque tending to ture the gate about its base. Density of water = 1000 kg m^(-3) and g = 9.8 m s^(-2)

A hollow spherical conducting sheel of inner radius R_(1) = 0.25 m and outer radius R_(2) = 0.50 m is placed inside a heat reservoir of temperature T_(0) = 1000^(@)C . The shell is initially filled with water at 0^(@)C . The thermal conductivity of the material is k =(10^(2))/(4pi) W//m-K and its heat capacity is negligible. The time required to raise the temperature of water to 100^(@)C is 1100 ln.(10)/(9) sec . Find K . Take specific heat of water s = 4.2 kJ//kg.^(@)C , density of water d_(w) = 1000 kg//m^(3) pi = (22)/(7)

When a glass capillary tube of radius 0.015 cm is dipped in water, the water rises to a height of 15 cm within it. Assuming contact angle between water and glass to be 0°, the surface tension of water.is [pwaler = 1000 kg m^(-3) , g = 9.81 m s^^(-2) ]

When a glass capilary tube of the radius 0.015 cm is dipped in water, the water rises to a heigth of 15 cm within it. Assuming the contact angle between water and glass to be 0^@ , the surface tension of water is [rho_("water") = 1000 kg m^(-3), g = 9.81 m s^(-2) ]

A leakage begins in water tank at position P as shown in the figure. The gauge pressure (pressure above that of the atmosphere) at P was 5xx10^(5) N//m^(2) . If the density of water is 1000kg//m^(3) the initial velocity with which water gushes out is approximately

To what depth below the surface of sea should a rubber ball be taken as to decreases its volume by 0.1% (Given denisty of sea water = 1000 kg m^(-3) , Bulk modulus of rubber = 9 xx 10^(8) Nm^(-2) , acceleration due to gravity = 10 ms^(-2) )