11. How much time does it take for a bird flying at a
speed of 54 km/h to travel a distance of 1,080
kilometers?
a. 30 km/h
b. 30 h
c. 20 km/h
d. 20 h

Describe how the fermi level changes with donor level, temperature and contact with p and n type semiconductors

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation