Latent Heat: Physics/ Chemistry
Please tell me how to do this too instead of just telling me the answer so I can actually understand what to do.

Calculate the amount if heat needed to melt 5kg of ice at 0 degrees Celsius and raise the temperature of the water to 50 degrees Celcius.​

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?