Would appreciate some help on these determination of the epicentral of an earthquake question! 1. Determine which waves arrive first at each of the seismographical stations. (Primary, Secondary...)

2. Determine the interval S-P for each of the three seismographical stations.

3. Figure 1B, determine the epicentral distance for each station, basing off of the previous question.

4, Localize the epicentre of the seism/earthquake, following these steps:
a) convert the epicentral distances calculated previously in centimeters, using the scale on figure 2.

What acceleration is produced when a 3,000-n force acts on a 1,200-kg car? ignore the friction

Which of the following is an example of a policy that may be implemented by a business that has trouble with employees using the internet for their own personal needs? a. all employees will have to take a safety training class. b. employees caught using the internet for personal needs will have to take a professional development class. c. personal interviews will be conducted to find out who is using the internet for personal needs. d. employees will be monitored, but nothing will happen if their employer catches them using the internet for personal needs.

All of the following are reasons why deserts extremely susceptible to wind erosion except a. they lack major root systems b. they contain thin, dry soil c. they have very few plants and trees d. they are extremely hot and lack water