Assuming motion is on a straight path, what would result in two positive components of a vector?

a. a train moving north of east at an angle of 25°
b. a bus moving north of east at an angle of 95°
c. a boat moving south of west at an angle of 40°
d. a car moving south of west at an angle of 10°

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?

Uppose we consider the system of the three capacitors as a single "equivalent" capacitor. given the charges of the three individual capacitors calculated in the previous part, find the total charge qtot for this equivalent capacitor. express your answer in terms of v and c.