An ice cube has a temperature of -15.0 " C The total thermal energy needed to raise the temperature of this ice cube to 0.0 C and completely melt the ice cube is 5848 specific heat capacity of ice = 2100 / kg C

specific latent heat of fusion of ice=334 000 J/kg

Calculate the mass of the ice cube.

[5 marks]

Explain in physical terms how a microwave oven works. what would happen when you put a conductor in the microwave oven? explain.

Most of the volume of an atom is occupied by the

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s