Consider a gas of free and independent electrons in two dimensions a- show that the electron density of states (w( is independent of the electron kinetic energy b- calculate the fermi energy at t 0k° c- calculate the average electron kinetic energy at t-ok" c- calculate the heat capacity at very low temperature

Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec

Ais not a mixture. colloid compound suspension solution

Which sentences describe point source pollution? in this type of pollution, the source of the pollution is single and easily identifiable. when runoff water from the melting of snow mixes with debris, it creates pollution. the runoff water, mixed with pollutants, reaches large areas with disastrous effects. alternatively, when a wastewater treatment plant releases harmful chemicals into a stream, the chemicals pollute the stream water because they are not treated for safety.