A solar-heated home has a tank of Glauber's salt in the basement. Its purpose is to store 2.8 X 10'J of heat energy,, and it can be
heated from 28°C to 50°C. The melting point of Glauber's salt is 32°C
and it has a specific latent heat of fusion of 241 kJ/kg. Its specific heat
capacity as a solid is 1066 J/(kg °C) and 1576 J/(kg °C) for its liquid
state. Calculate the mass of Glauber's salt required to store this heat.(8)

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.