The asymmetric roof truss is of the type used when a near normal angle of incidence of sunlight onto the south-facing surface ABC is desirable for solar energy purposes. The five vertical loads represent the
effect of the weights of the truss and supported roofing materials. The 400-N load represents the effect
of wind pressure. Determine the equivalent force–couple system at A. Also, compute the x-intercept of
the line of action of the system resultant treated as a single force R.

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.