Angela sees a puzzle that uses a board with 20 holes drilled into it. there are 18 pegs in the holes, and the goal of the puzzle is to move the pegs by hopping them into the open holes until both holes are at one end of the board. how could angela use the puzzle to model semiconductors? a. as an n-type semiconductor with the pegs representing electrons and the holes representing positive charges b. as an n-type semiconductor with the holes representing electrons and the pegs representing positive charges c. as a p-type semiconductor with the pegs representing electrons and the holes representing positive charges d. as a p-type semiconductor with the holes representing electrons and the pegs representing positive charges

An airplane flies eastward and always accelerates at a constant rate. at one position along its path it has a velocity of 34.3 m/s, it then flies a further distance of 40100 m and afterwards its velocity is 47.5 m/s. find the airplane\'s acceleration and calculate how much time elapses while the airplane covers those 40100 m.

1. consider the case in which air fills air shocks on a truck trailer. the pressure in the shocks is 2 mpa. the temperature is 300 k. the diameter of the shock piston is 10 cm and the initial length of the cylindrical cavity containing the compressed air is 40 cm. a. the truck is gradually loaded over a period of a day in a static setting. the temperature is held constant for the atmosphere and thus for the gas shock. calculate the compressibility of the air in the shock for this condition when the truck is initially being loaded. b. if the shocks were loaded in a dynamic setting by driving over bumps, what would be the compressibility? state your assumption. c. what is the initial load on the shock if the shock is in an atmospheric 100 kpa? d. if the shock is compressed using the process described in part a, and the air shock compressed air cavity length decreases to 20 cm, what is the additional load applied to the shock?

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.