When the same amount of heat is added to equal masses of water and copper at the same temperature the copper is heated to a higher final temperature than water. on a molecular level what explains this difference a. the average kinetic energy of water molecules is greater than the average kinetic energy of the copper
b. more of the heat is transferred to the potential energy of the water molecules than the potential energy of the copper atoms
c. the intermolecular forces between copper atoms are stronger than those between water molecules
d. more of the heat is transferred to the kinetic energy of the water molecules than to the kinetic energy of the copper atoms

Aquantity of gas has a volume of 1.5 m3 and an absolute pressure of 95 kpa. when the gas is compressed to a volume of 0.5 m3, what is the new absolute pressure of the gas? (assume that there’s no change in temperature.)

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?