1.An egual-tangent sag vertical curve is designed with the PVC at station 109+00 and elevation 950 ft, the PVI at station 110+77 and elevation 947.34 ft, and the low point at station 110+50. Determine the design speed of the curve.
2.Suppose that sodium pentobarbital is used to anesthetize a dog. the dog is anesthetized when its bloodstream contains at least 45 mg of sodium pentobarbitol per kilogram of the dog's body weight. Suppose also that sodium pentobarbitol is eliminated exponetially for the dogs bloodstream, with a half-life of 5 h. what single dose should be administered in order to anesthetize a 50-kg dog for 1 h?