Calculate the amount of heat needed to convert 0.8 kg of ice at -19 °C into water at 29 °C.

Any color picture tube and electric field exerts a net force of magnitude 1.68x 10^-13 n on an electron the rest mass of an electron is 9.11 x 10^-13 what is the electron acceleration?

Consider the phase change taking place in the picture. you could use all but one statement to describe what is happening here. that is: a) temperature is increasing. b) kinetic energy is increasing. c) the space between the particles remains the same. d) the attractive force between the particles is decreasing.

What is the volume of 2400kg of gasoline (petrol) if the density of petrol is 0.7g/km3