A boat leaves the dock at t = 0 and heads out into a lake with an acceleration of 2.1 m/s2 î. A strong wind is pushing the boat, giving it an additional velocity of 2.1 m/s î + 2.2 m/s ĵ. (Assume the boat is at the origin at t = 0. Express your answers in vector form.) (a) What is the velocity of the boat (in m/s) at t = 10 s?

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?

Elements on the periodic table are ordered according to their

Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excesselectrons is typical. what is the magnitude of the electric forceon a protein with this charge in a 1500 n/c electric field?