The pressure of a given mass of gas changes from 200 Nm2 to 100 N…
The pressure of a given mass of gas changes from 200 Nm2 to 100 N m2, while its…
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An air bubble of volume 2 cm(^3) is formed 20m under water. What will be its…
An air bubble of volume 2 cm(^3) is formed 20m under water. What will be its volume when it…
Hot water at a temperature of t is added to twice that amount of water…
Hot water at a temperature of t is added to twice that amount of water at a temperature…
A body of specific heat capacity 450J kg-1 K-1 falls to the ground from rest…
A body of specific heat capacity 450J kg-1 K-1 falls to the ground from rest through a vertical…
A brass rod is 2 m long at a certain temperature. Calculate the linear expansion…
A brass rod is 2 m long at a certain temperature. Calculate the linear expansion of the rod…
A mercury-in-glass thermometer reads – 20o at the ice point and 100o at the steam…
A mercury-in-glass thermometer reads – 20o at the ice point and 100o at the steam point. Calculate the…
A machine has an efficiency of 60%. If the machine is required to overcome a…
A machine has an efficiency of 60%. If the machine is required to overcome a load of 30…
A body weighing 10 N in air is partially immersed in water. It displaces water…
A body weighing 10 N in air is partially immersed in water. It displaces water of mass 0.3…
A car travelling at a uniform speed of 120km h-1 passes two stations in 4…
A car travelling at a uniform speed of 120km h-1 passes two stations in 4 minutes. Calculate the…
The angular speed of an object describing a circle of radius 4m with a linear…
The angular speed of an object describing a circle of radius 4m with a linear constant speed of…