Calculate: Subtract the water’s initial temperature from its final temperature to complete the third column of the table. An object’s GPE can be calculated by multiplying its height (h) by its mass (m) and acceleration due to gravity (g): GPE = mgh. On Earth, g = 9.8 m/s2. Calculate the cylinder’s GPE for each of the trials you completed and fill in the last column of the table.
i need help with the cylinders gpe can anyone help?

Will you chech and finish these for me, because i am stumped with them.

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?

Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.