1.Why there may be significant scatter in the fracture strength for some given ceramic material,and why fracture stength increases with decreasing specimen size
2.The cash flow sequence $70+4k, where k is in years and cash flow is in $1000. What is the future work of the entire cash flow series in year 10 at 10% per year
3.Points P and B are on opposite sided of a river. To determine the distance between P and B, a point Q is marked on the grounded and the following measurements are made: the distance PQ is 230.0 ft, the angle QPB is 53 degrees 30', and the angle PQB is 80 degrees 15'. The distance from P to B is
A)282.0 ft B)313.8 ft
C)168.6 ft. D)187.0 ft