w much energy (in J) is required to raise the temperature of that volume of water from 12.8°C to 23.6°C? 27e24 n the density of water and the volume, what is the mass of the water? What is specific heat? How is it related to the energy input, mass, a rgy. Be careful with units. J many vears would it take to supply this amount of energy by using a power of 1.400 MW generated by an electric power plant?

A test automobile of mass 1000 kg moving at high speed crashes into a wall. The average temperature of the car is measured to rise by 0.5°C after the wreck. What is the change in mass of the car? Where does this change in mass come from? (Assume the average specifi c heat of the automobile is close to that of steel, 0.11 cal . g-1 .°C-1.)

Please answer everything asap i really need help

A mass ma = 2kg slides down slippery ramp, reaching a speed v = 10 m/s at the bottom. After reaching the level ground ma collides with mass mg = perfectly inelastic collision. 3kg at bottom, sticking together in a a.) What was the height of the ramp, assuming that m, started from rest? b.) How fast were the combined masses ma and mg moving after sticking together? c.) The combined mass runs into a spring, which brings it to a stop after being compressed 7 cm. What is the spring constant k ?