How long does it take a 750 W heater operating at full rating to raise the temperature of 1 kg of water from 40^oC to 70^oC? (Take the specific heat capacity of water as 4200 J kg^-1 K^-1 and neglect heat losses).

Similar Questions

The physical properties of sound waves can best be described by ...

Which of the following waves is not mechanical? ...

The extension in a spring when 5g wt was hung from it was 0.56cm. If Hooke's law is obeyed, What...

Two bodies have masses in the ratio3:1. They experience forces which impart to them, accel...

If the threshold frequency for tungsten is 1.3 x 1015Hz, what is its work function? [H = 6.6 x ...

A piece of radioactive material contains 1000 atmos. If its half -life is 20seconds, the time taken ...

A piece of metal of relative density 5.0 weighs 60N in air. Calculate its weight when fully immersed...

Which of the following figures gives the correct resultant R of two vectors P and Q? ...

The magnitude of the force required to make an object of mass, m move with speed, v in a circular of...

When a conductor mounted on an insulating stand is charged and left for sometime, the conductor even...