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At low temperatures(0K), the conduction band is empty while the valence band if filled. As temperature increases, the electrons gain energy to go into the conduction band and leave positive holes in the v...

A good template structure for scientific report writing might be as follows: title page, abstract, introduction, theory, description of apparatus, experimental procedure, results, conclusions, references,...

1. always draw free-body diagram. This will clarify the forces that are acting on the object

2. Determine whether newton's 1st law or 2nd law that are in play, and use the equations ...

The only forces acting on the balls are gravity (pulling down) and air resistance (pushing up). Since the balls are the same shape and size, the air resistance will be the same on both. Likewise, the grav...

Geostationary orbits: -have a time period of 24 hours -have an angular speed equal to that of the Earth - maintain above a fixed position on the Earth's surface at all times. Therefore, they are very good...