Question Attached
For unlimited access to Homework Help, a Homework+ subscription is required.
Calculate the energy gained when a 2.00kg block of ice at a temperature of -6c is heated to 120c.
Calculate the final temperature of a piece of 80 c copper with a mass of 50g when it is added to 500 g of water that starts at a temperature of 20 c.
If a hydroelectric station is 93% efficient. What mass of water must pass through the station each 1.00 s to produce 855 kW of electricity from a 34.6 m drop? (5 marks)