A roadway is designed for traffic moving at a speed of 66m/s. A curved section of the roadway is in the shape of a circular arc of 290-m radius. This section of roadway is banked so that a vehicle travelling at 66m/s will experience no net lateral acceleration. What is the angle at which the roadway is banked? 57 degrees 51 degrees 53 degrees 55 degrees 59 degrees​

Which levels of government establish and implement educational requirements for minors

Lightning is an example of what phenomenon? a release of a large amount of energy an absorption of a large amount of energy a natural electric circuit a natural electric current

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.