If G₁=2 % and G₂=-4%, the required vertical curve is a crest curve. O True False QUESTION 5 A vertical curve is needed to join to tangents; G₁-2% and G₂-5%. Assuming the worst case scenario for braking, and the AASHTO recommended values for deceleration and perception-reaction time, calculate the minimum length of curve (ft) needed to satisfy the comfort criteria. The design speed is 50 mph.

why we multiplied 40' with 1.5 and 1.75?

What is the volume of a 3 ft. cube?

A parcel of land is in the shape of a pentagon. The vertices are labeled A through E. A surveyor gives you the following information regarding the parcel. Side Bearing Distance A to B Due West 420 feet B to C N 20° W 335 feet C to D N 28° E 475 feet D to E S 73° E 510 feet E to A No information No information Do the following: • Draw a diagram for the parcel of land. • Formulate a strategy for determining the area of the parcel using trigonometry. • Determine the area of the parcel, clearly showing all steps and calculations. Give area in units of square feet (correct to the nearest square foot) and in units of acres (correct to 3 decimal places).