How much energy (in MJ) is needed to raise the temperature of 0.152 m3 of water from 20.9˚C to 82.4˚C [round your final answer to one decimal place]?   {specific heat of water = 4,180 J/(kg∙˚C); density of water = 990.1 Kg/m3}

If it takes exactly 4 min. to completely melt a 2.0 kg block of ice at 0.0° C, how much power is needed? (For water Lf = 334 kJ/kg and Lv = 2257 kJ/kg.)

Large meteors sometimes strike the Earth, converting most of their kinetic energy into thermal energy. If a 10° kg meteor moving at 25.0 km/s lands in a deep ocean and 80% of its kinetic energy goes into heating water, how many kilograms of water could it raise by 5.0°C? Select the correct answer O 8 × 1012 kg O 5 x 1013 kg O 1x 1013 kg O 4 × 1012 kg|Answer Your O 2 x 1013 kg